2 Corinthians 1:20

All the promises. God’s promises are dependable.

In him are yea. That is, through Christ. All the promises of God became incarnate in Him, they met their fulfillment in Him. He is thus the evidence of the reliability of all the divine promises made to the fathers. Compare Acts 3:20, 21; Rom. 15:8. The Christian faith is an absolute certainty.

Amen. That is, true, faithful, certain (see on Matt. 5:18; John 1:51). The word here repeats the idea already expressed in “yea” (see on 2 Cor. 1:17, 18). It is not a title as in Rev. 3:14. Because the Greek reads literally, “the amen,” it has been suggested that Paul here refers to the word “Amen” uttered by Christians in affirmation of the eternal truths of the Christian faith.

Glory of God. In all of his labors Paul sought only to honor God and to advance His kingdom. See on Rom. 3:24.

By us. Through Christ the promises are proved reliable, and through His people they are proved efficacious. Through the life and ministry of Paul in particular the name of God was being glorified, and Paul could hardly make capricious promises while engaged in the proclamation of promises so certain as those of God confirmed through Christ.

To the extent that Christians follow their Master, they too become constant and steadfast — in obedience to God and in devotion to His cause on earth. Christian experience never makes men fickle. At times Paul altered his plans, but when he did so it was with undeviating loyalty to principle and to duty as it had been revealed to him.