Dialogue with Trypho Ch 11:
Nor do we think that there is one God for us, another for you, but that He alone is God who led your fathers out from Egypt with a strong hand and a high arm. Nor have we trusted in any other (for there is no other), but in Him in whom you also have trusted, the God of Abraham, and of Isaac, and of Jacob. But we do not trust through Moses or through the law; for then we would do the same as yourselves. But now —(for I have read that there shall be a final law, and a covenant, the chiefest of all, which it is now incumbent on all men to observe, as many as are seeking after the inheritance of God. For the law promulgated on Horeb is now old, and belongs to yourselves alone; but this is for all universally. Now, law placed against law has abrogated that which is before it, and a covenant which comes after in like manner has put an end to the previous one; and an eternal and final law — namely, Christ — has been given to us, and the covenant is trustworthy, after which there shall be no law, no commandment, no ordinance. Have you not read this which Isaiah says: 'Hearken unto Me, hearken unto Me, my people; and, you kings, give ear unto Me: for a law shall go forth from Me, and My judgment shall be for a light to the nations. My righteousness approaches swiftly, and My salvation shall go forth, and nations shall trust in My arm?' And by Jeremiah, concerning this same new covenant, He thus speaks: 'Behold, the days come, says the Lord, that I will make a new covenant with the house of Israel and with the house of Judah; not according to the covenant which I made with their fathers, in the day that I took them by the hand, to bring them out of the land of Egypt' Jeremiah 31:31-32). If, therefore, God proclaimed a new covenant which was to be instituted, and this for a light of the nations, we see and are persuaded that men approach God, leaving their idols and other unrighteousness, through the name of Him who was crucified, Jesus Christ, and abide by their confession even unto death, and maintain piety. Moreover, by the works and by the attendant miracles, it is possible for all to understand that He is the new law, and the new covenant, and the expectation of those who out of every people wait for the good things of God. For the true spiritual Israel, and descendants of Judah, Jacob, Isaac, and Abraham (who in uncircumcision was approved of and blessed by God on account of his faith, and called the father of many nations), are we who have been led to God through this crucified Christ, as shall be demonstrated while we proceed.
Nor do we think that there is one God for us, another for you, but that He alone is God who led your fathers out from Egypt with a strong hand and a high arm. Nor have we trusted in any other (for there is no other), but in Him in whom you also have trusted, the God of Abraham, and of Isaac, and of Jacob. But we do not trust through Moses or through the law; for then we would do the same as yourselves. But now —(for I have read that there shall be a final law, and a covenant, the chiefest of all, which it is now incumbent on all men to observe, as many as are seeking after the inheritance of God. For the law promulgated on Horeb is now old, and belongs to yourselves alone; but this is for all universally. Now, law placed against law has abrogated that which is before it, and a covenant which comes after in like manner has put an end to the previous one; and an eternal and final law — namely, Christ — has been given to us, and the covenant is trustworthy, after which there shall be no law, no commandment, no ordinance. Have you not read this which Isaiah says: 'Hearken unto Me, hearken unto Me, my people; and, you kings, give ear unto Me: for a law shall go forth from Me, and My judgment shall be for a light to the nations. My righteousness approaches swiftly, and My salvation shall go forth, and nations shall trust in My arm?' And by Jeremiah, concerning this same new covenant, He thus speaks: 'Behold, the days come, says the Lord, that I will make a new covenant with the house of Israel and with the house of Judah; not according to the covenant which I made with their fathers, in the day that I took them by the hand, to bring them out of the land of Egypt' Jeremiah 31:31-32). If, therefore, God proclaimed a new covenant which was to be instituted, and this for a light of the nations, we see and are persuaded that men approach God, leaving their idols and other unrighteousness, through the name of Him who was crucified, Jesus Christ, and abide by their confession even unto death, and maintain piety. Moreover, by the works and by the attendant miracles, it is possible for all to understand that He is the new law, and the new covenant, and the expectation of those who out of every people wait for the good things of God. For the true spiritual Israel, and descendants of Judah, Jacob, Isaac, and Abraham (who in uncircumcision was approved of and blessed by God on account of his faith, and called the father of many nations), are we who have been led to God through this crucified Christ, as shall be demonstrated while we proceed.
Dialogue with Trypho Ch 23:
Wherefore, Trypho, I will proclaim to you, and to those who wish to become proselytes, the divine message which I heard from that man. Do you see that the elements are not idle, and keep no Sabbaths? Remain as you were born. For if there was no need of circumcision before Abraham, or of the observance of Sabbaths, of feasts and sacrifices, before Moses; no more need is there of them now, after that, according to the will of God, Jesus Christ the Son of God has been born without sin, of a virgin sprung from the stock of Abraham. For when Abraham himself was in uncircumcision, he was justified and blessed by reason of the faith which he reposed in God, as the Scripture tells. Moreover, the Scriptures and the facts themselves compel us to admit that He received circumcision for a sign, and not for righteousness. So that it was justly recorded concerning the people, that the soul which shall not be circumcised on the eighth day shall be cut off from his family. And, furthermore, the inability of the female sex to receive fleshly circumcision, proves that this circumcision has been given for a sign, and not for a work of righteousness.
Wherefore, Trypho, I will proclaim to you, and to those who wish to become proselytes, the divine message which I heard from that man. Do you see that the elements are not idle, and keep no Sabbaths? Remain as you were born. For if there was no need of circumcision before Abraham, or of the observance of Sabbaths, of feasts and sacrifices, before Moses; no more need is there of them now, after that, according to the will of God, Jesus Christ the Son of God has been born without sin, of a virgin sprung from the stock of Abraham. For when Abraham himself was in uncircumcision, he was justified and blessed by reason of the faith which he reposed in God, as the Scripture tells. Moreover, the Scriptures and the facts themselves compel us to admit that He received circumcision for a sign, and not for righteousness. So that it was justly recorded concerning the people, that the soul which shall not be circumcised on the eighth day shall be cut off from his family. And, furthermore, the inability of the female sex to receive fleshly circumcision, proves that this circumcision has been given for a sign, and not for a work of righteousness.
Romans 4:
4 What then shall we say that Abraham, our forefather according to the flesh, has found? 2 For if Abraham was justified by works, he has something to boast about, but not before God. 3 For what does the Scripture say? “Abraham believed God, and it was credited to him as righteousness.” 4 Now to the one who works, his wage is not credited as a favor, but as what is due. 5 But to the one who does not work, but believes in Him who justifies the ungodly, his faith is credited as righteousness, 6 just as David also speaks of the blessing on the man to whom God credits righteousness apart from works:
7 “Blessed are those whose lawless deeds have been forgiven,
And whose sins have been covered.
8 “Blessed is the man whose sin the Lord will not take into account.”
9 Is this blessing then on the circumcised, or on the uncircumcised also? For we say, “Faith was credited to Abraham as righteousness.” 10 How then was it credited? While he was circumcised, or uncircumcised? Not while circumcised, but while uncircumcised; 11 and he received the sign of circumcision, a seal of the righteousness of the faith which he had while uncircumcised, so that he might be the father of all who believe without being circumcised, that righteousness might be credited to them, 12 and the father of circumcision to those who not only are of the circumcision, but who also follow in the steps of the faith of our father Abraham which he had while uncircumcised.
13 For the promise to Abraham or to his descendants that he would be heir of the world was not through the Law, but through the righteousness of faith. 14 For if those who are of the Law are heirs, faith is made void and the promise is nullified; 15 for the Law brings about wrath, but where there is no law, there also is no violation.
16 For this reason it is by faith, in order that it may be in accordance with grace, so that the promise will be guaranteed to all the descendants, not only to those who are of the Law, but also to those who are of the faith of Abraham, who is the father of us all, 17 (as it is written, “A father of many nations have I made you”) in the presence of Him whom he believed, even God, who gives life to the dead and calls into being that which does not exist. 18 In hope against hope he believed, so that he might become a father of many nations according to that which had been spoken, “So shall your descendants be.”
4 What then shall we say that Abraham, our forefather according to the flesh, has found? 2 For if Abraham was justified by works, he has something to boast about, but not before God. 3 For what does the Scripture say? “Abraham believed God, and it was credited to him as righteousness.” 4 Now to the one who works, his wage is not credited as a favor, but as what is due. 5 But to the one who does not work, but believes in Him who justifies the ungodly, his faith is credited as righteousness, 6 just as David also speaks of the blessing on the man to whom God credits righteousness apart from works:
7 “Blessed are those whose lawless deeds have been forgiven,
And whose sins have been covered.
8 “Blessed is the man whose sin the Lord will not take into account.”
9 Is this blessing then on the circumcised, or on the uncircumcised also? For we say, “Faith was credited to Abraham as righteousness.” 10 How then was it credited? While he was circumcised, or uncircumcised? Not while circumcised, but while uncircumcised; 11 and he received the sign of circumcision, a seal of the righteousness of the faith which he had while uncircumcised, so that he might be the father of all who believe without being circumcised, that righteousness might be credited to them, 12 and the father of circumcision to those who not only are of the circumcision, but who also follow in the steps of the faith of our father Abraham which he had while uncircumcised.
13 For the promise to Abraham or to his descendants that he would be heir of the world was not through the Law, but through the righteousness of faith. 14 For if those who are of the Law are heirs, faith is made void and the promise is nullified; 15 for the Law brings about wrath, but where there is no law, there also is no violation.
16 For this reason it is by faith, in order that it may be in accordance with grace, so that the promise will be guaranteed to all the descendants, not only to those who are of the Law, but also to those who are of the faith of Abraham, who is the father of us all, 17 (as it is written, “A father of many nations have I made you”) in the presence of Him whom he believed, even God, who gives life to the dead and calls into being that which does not exist. 18 In hope against hope he believed, so that he might become a father of many nations according to that which had been spoken, “So shall your descendants be.”
Galatians 3:
6 Even so Abraham believed God, and it was reckoned to him as righteousness. 7 Therefore, be sure that it is those who are of faith who are sons of Abraham. 8 The Scripture, foreseeing that God would justify the Gentiles by faith, preached the gospel beforehand to Abraham, saying, “All the nations will be blessed in you.” 9 So then those who are of faith are blessed with Abraham, the believer.
10 For as many as are of the works of the Law are under a curse; for it is written, “Cursed is everyone who does not abide by all things written in the book of the law, to perform them.” 11 Now that no one is justified by the Law before God is evident; for, “the righteous man shall live by faith.” 12 However, the Law is not of faith; on the contrary, “He who practices them shall live by them.” 13 Christ redeemed us from the curse of the Law, having become a curse for us—for it is written, “Cursed is everyone who hangs on a tree”— 14 in order that in Christ Jesus the blessing of Abraham might come to the Gentiles, so that we would receive the promise of the Spirit through faith.
15 Brethren, I speak in terms of human relations: even though it is only a man’s covenant, yet when it has been ratified, no one sets it aside or adds conditions to it. 16 Now the promises were spoken to Abraham and to his seed. He does not say, “And to seeds,” as referring to many, but rather to one, “And to your seed,” that is, Christ. 17 What I am saying is this: the Law, which came four hundred and thirty years later, does not invalidate a covenant previously ratified by God, so as to nullify the promise. 18 For if the inheritance is based on law, it is no longer based on a promise; but God has granted it to Abraham by means of a promise.
6 Even so Abraham believed God, and it was reckoned to him as righteousness. 7 Therefore, be sure that it is those who are of faith who are sons of Abraham. 8 The Scripture, foreseeing that God would justify the Gentiles by faith, preached the gospel beforehand to Abraham, saying, “All the nations will be blessed in you.” 9 So then those who are of faith are blessed with Abraham, the believer.
10 For as many as are of the works of the Law are under a curse; for it is written, “Cursed is everyone who does not abide by all things written in the book of the law, to perform them.” 11 Now that no one is justified by the Law before God is evident; for, “the righteous man shall live by faith.” 12 However, the Law is not of faith; on the contrary, “He who practices them shall live by them.” 13 Christ redeemed us from the curse of the Law, having become a curse for us—for it is written, “Cursed is everyone who hangs on a tree”— 14 in order that in Christ Jesus the blessing of Abraham might come to the Gentiles, so that we would receive the promise of the Spirit through faith.
15 Brethren, I speak in terms of human relations: even though it is only a man’s covenant, yet when it has been ratified, no one sets it aside or adds conditions to it. 16 Now the promises were spoken to Abraham and to his seed. He does not say, “And to seeds,” as referring to many, but rather to one, “And to your seed,” that is, Christ. 17 What I am saying is this: the Law, which came four hundred and thirty years later, does not invalidate a covenant previously ratified by God, so as to nullify the promise. 18 For if the inheritance is based on law, it is no longer based on a promise; but God has granted it to Abraham by means of a promise.
What is the likelihood that these two writers came up with this argument independently? What is the chance that Justin got it from Paul, but never acknowledged Paul? What is the chance that Justin has been interpolated into Paul? I will note that there does appear to be a slight difference between in the two, in that Justin says, " He received circumcision for a sign, and not for righteousness." Romans, however says, "he received the sign of circumcision, a seal of the righteousness of the faith which he had while uncircumcised, so that he might be the father of all who believe without being circumcised." These may be seen as contradictory?
Note that these arguments about Abraham are not deemed to be present in Marcion's Apostolikon.
Are there any scholars who address this issue thoroughly?