For the Son of God, Jesus Christ . . . was not Yes and No,
but in Him it has always been Yes.
(2 Corinthians 1:19 NIV)
The church must preach Jesus Christ as God’s fulfillment of the promise—God’s Son, man’s only hope. The preaching of Paul, Silvanus, and Timothy was not wishy-washy; it was definite. Jesus is the Father’s “yes” for every promise, every need, and every hope. By affirming Jesus, they gave glory to the Father’s provision. All of the Corinthians’ knowledge of His Son, His promise, and provision of grace came through the mission team. If they started doubting the motive and the message of Paul, they would lose confidence in the gospel.