But the righteousness which is of faith speaketh on this wise, Say not in thine heart, Who shall ascend into heaven? (that is, to bring Christ down from above:) But the righteousness which is of faith - As it is most evident that there can be no justification by works, as all are sinful and all in a guilty state; if God will grant salvation at all, it must be by faith: but faith must have an object and a reason for its exercise; the object is Jesus Christ - the reason is the infinite merit of his passion and death.
Who shall ascend unto heaven? etc. - As Christ is the end of the law for justification to every one that believes, no observance of the law can procure him. Who, by the practice of the law, can bring Christ down from heaven? or, when brought down, and crucified and buried, as a sacrifice for sin, who can bring him up again from the dead? And both his death and resurrection are essentially necessary for the salvation of a lost world. Or the sense of the apostle may be this: They who will not believe in Christ crucified must in effect be seeking another Messiah to come down from heaven with a different revelation; or they who will not credit the doctrine that we preach concerning his resurrection seem in effect to say, Christ yet remains to be raised from the dead, and reign over the Jews as a mighty secular sovereign, subjecting the Gentile world to the sway of his righteous scepter.