4:1-12 To meet the views of the Jews, the apostle first refers to the example of Abraham, in whom the Jews gloried as their most renowned forefather. However exalted in various respects, he had nothing to boast in the presence of God, being saved by grace, through faith, even as others. Without noticing the years which passed before his call, and the failures at times in his obedience, and even in his faith, it was expressly stated in Scripture that he believed God, and it was counted to him for righteousness, Ge 15:6. From this example it is observed, that if any man could work the full measure required by the law, the reward must be reckoned as a debt, which evidently was not the case even of Abraham, seeing faith was reckoned to him for righteousness. When believers are justified by faith, their faith being counted for righteousness, their faith does not justify them as a part, small or great, of their righteousness; but as the appointed means of uniting them to Him who has chosen as the name whereby he shall be called, the Lord our Righteousness. Pardoned people are the only blessed people. It clearly appears from the Scripture, that Abraham was justified several years before his circumcision. It is, therefore, plain that this rite was not necessary in order to justification. It was a sign of the original corruption of human nature. And it was such a sign as was also an outward seal, appointed not only to confirm God's promises to him and to his seed, and their obligation to be the Lord's, but likewise to assure him of his being already a real partaker of the righteousness of faith. Thus Abraham was the spiritual forefather of all believers, who walked after the example of his obedient faith. The seal of the Holy Spirit in our sanctification, making us new creatures, is the inward evidence of the righteousness of faith.How was it then reckoned?.... The Arabic version adds, "and when"; and the Ethiopic version reads it, "when was Abraham justified?" expressing the sense, not the words of the original text, with which agree the following questions:

when he was in circumcision, or in uncircumcision? that is, was he justified, or his faith reckoned to him for righteousness, when he was a circumcised, or an uncircumcised person?

not in circumcision; or when he was circumcised; for when it was said of him, that "he believed in the Lord", and "he counted it to him for righteousness", Genesis 15:6, he was then uncircumcised, and remained so many years after: for this was before the birth of Ishmael, and Ishmael was "thirteen" years of age when he and his father Abraham were circumcised; so that it must be "fourteen" years, or thereabout, before his circumcision, that this declaration of his being a justified person was made; wherefore the apostle rightly adds,

but in uncircumcision; or whilst an uncircumcised person: hence it clearly appears that circumcision could not be the cause of his justification, since it followed it; and if Abraham when uncircumcised was a justified person, as it is certain he was, why may not uncircumcised Gentiles be justified also? and especially when it is observed, that the covenant made with Abraham when uncircumcised, included the Gentiles; see Genesis 12:3.