John Calvin on John 5:38

38. And you have not his word abiding in you. This is the true way of profiting, when the word of God takes root in us, so that, being impressed on our hearts, it has its fixed abode there. Christ affirms that the heavenly doctrine has no place among the Jews, because they do not receive the Son of God, on whom it everywhere bestows commendation. And justly does he bring this reproach against them; for it was not in vain that God spake by Moses and the Prophets. Moses had no other intention than to invite all men to go straight to Christ; and hence it is evident that they who reject Christ are not the disciples of Moses. Besides, how can that man have the word of life abiding in him who drives from him the life itself? How can that man keep the doctrine of the Law who destroys the soul of the Law, as far as lies in his power? For the Law without Christ is empty and has no solidity. Just in proportion, therefore, as any man knows Christ, is the proficiency which he has made in the word of God.