1:17 The law was given by Moses. It was not a system of grace, nor could it make men perfect; in contrast with it the system of grace and truth (Joh 1:14) was given by Jesus Christ.
1:17 The law - Working wrath and containing shadows: was given - No philosopher, poet, or orator, ever chose his words so accurately as St. John. The law, saith he, was given by Moses: grace was by Jesus Christ. Observe the reason for placing each word thus: The law of Moses was not his own. The grace of Christ was. His grace was opposite to the wrath, his truth to the shadowy ceremonies of the law. Jesus - St. John having once mentioned the incarnation {Joh 1:14,) no more uses that name, the Word, in all his book.
1:15-18 As to the order of time and entrance on his work, Christ came after John, but in every other way he was before him. The expression clearly shows that Jesus had existence before he appeared on earth as man. All fulness dwells in him, from which alone fallen sinners have, and shall receive, by faith, all that renders them wise, strong, holy, useful, and happy. Our receivings by Christ are all summed up in this one word, grace; we have received even grace, a gift so great, so rich, so invaluable; the good will of God towards us, and the good work of God in us. The law of God is holy, just, and good; and we should make the proper use of it. But we cannot derive from it pardon, righteousness, or strength. It teaches us to adorn the doctrine of God our Saviour, but it cannot supply the place of that doctrine. As no mercy comes from God to sinners but through Jesus Christ, no man can come to the Father but by him; no man can know God, except as he is made known in the only begotten and beloved Son.