What does 2 Corinthians 1:18 mean?
Paul is denying the charge from some in Corinth that he has been vacillating in planning his trips to visit them in person. The charge implies he lacks integrity and commitment, foolishly saying "yes" and "no" at the same time.Paul insists here that such is not the case. All his plans, both the original one described in 1 Corinthians 16 and the modified one detailed in the previous verses, were made in good faith. Paul fully intended to carry through with them. He promises that this is true "as surely as God is faithful." In other words, his intentions were unqualified truth; the plans changed because of things outside Paul's authority.
He will go on to say that his plans were changed by Christ Himself, as well as by what happened between him and someone in the church during his previous visit.