23. According to promise. This clause doth also prove that which I have already said elsewhere, that in sending Christ, the Lord had respect only unto his own faithfulness and goodness; for he sent him because he had promised so to do. And as the promise doth testify that salvation was free, so it doth also purchase no small credit to the gospel; because it appeareth by this that Christ came not at a sudden, of whom there was never anything spoken; but that he who was promised from the beginning was now given in his time. But the promises which Luke here toucheth by the way are famous and well known. And they were so common among the Jews, that they called Christ commonly by no other name but the Son of David, (Matthew 22:42; Matthew 15:22.) He saith that Jesus was raised up to Israel; because, though salvation belong to the whole world, yet was he first a minister of circumcision to fulfill the promises made to the fathers, (Romans 15:8.) He translated the Hebrew name Jesus into σωτηρ in Greek. So that he uttered one thing twice, and yet here is no superfluous repetition; because he meant to declare that Christ is indeed and doth perform that which the name given him by God, by the voice of the angel, doth import.