Know ye therefore
Or "ye know"; this is a thing known by you, at least may, or should be; it ought not to be contradicted or disputed, it is so plain a case, and so clear a point:
that they which are of faith;
of the faith of Abraham, as in ( Romans 4:16 ) have the same faith as he had, for nature and kind; though it may not be to the same degree, yet exercised on the same object, Jehovah the Word, the Lord our righteousness, and wrought by the same Spirit; or who are of the faith of Christ, believers in him with all their hearts, and for themselves; who look to him for righteousness and life, who seek for justification by his righteousness, and trust in him alone for it, and not in the works of the law:
the same are the children of Abraham;
his spiritual seed, though they may not be his natural offspring; for he is the father of all that believe, whether of the circumcision or the uncircumcision, and of none else in a spiritual sense: in this the apostle strikes at the false teachers, who boasted of their being the seed of Abraham, his natural descendants, which they might be, and yet not his spiritual children; for none are such, but they that are of faith, or seek for righteousness by faith; not they that are of the law, or seek for justification by the works of it, and so not heirs of the blessing; were they, faith would be made void, and the promise of none effect, ( Romans 5:14 ) and his view herein is to prove, that the Gentiles, who believe, are the true seed of Abraham, the children of the promise, those in many nations, he was promised to be the father of; and his further view is to observe, that as the father of the faithful was justified, so are all his children; and that as he was justified by faith, so are they.