Bible Verse 2-19

2 Corinthians 1:18-20 (The Message)
17-19Are you now going to accuse me of being flip with my promises because it didn't work out? Do you think I talk out of both sides of my mouth—a glib yes one moment, a glib no the next? Well, you're wrong. I try to be as true to my word as God is to his. Our word to you wasn't a careless yes canceled by an indifferent no. How could it be? When Silas and Timothy and I proclaimed the Son of God among you, did you pick up on any yes-and-no, on-again, off-again waffling? Wasn't it a clean, strong Yes?
20-22Whatever God has promised gets stamped with the Yes of Jesus. In him, this is what we preach and pray, the great Amen, God's Yes and our Yes together, gloriously evident. God affirms us, making us a sure thing in Christ, putting his Yes within us. By his Spirit he has stamped us with his eternal pledge—a sure beginning of what he is destined to complete.

And in case you don't like the Message:

2 Corinthians 1:18-20 (New King James Version)
18 But as God is faithful, our word to you was not Yes and No. 19 For the Son of God, Jesus Christ, who was preached among you by us—by me, Silvanus, and Timothy—was not Yes and No, but in Him was Yes. 20 For all the promises of God in Him are Yes, and in Him Amen, to the glory of God through us.