2 Corinthians 1:17-19

17 So when I intended this, did I act lightly? [10] Or do I make my plans according to human considerations, so that with me it is "yes, yes" and "no, no"? [AJ]

18 As God is faithful, [11] our word to you is not "yes" and "no."

19 For the Son of God, Jesus Christ, who was proclaimed to you by us, Silvanus and Timothy and me, was not "yes" and "no," but "yes" has been in him. [AK]