'Yes' in the Bible

Therefore, [when I] was wanting [to do] this, perhaps then was I making use of vacillation? Or was I deciding what I was deciding according to the flesh, in order that with me my "yes" may be "yes" and my "no" [may be] "no" [at the same time]?

But God [is] faithful, so that our word to you is not "yes" and "no."

For the Son of God, Jesus Christ, the one who was proclaimed among you by us, by me and Silvanus and Timothy, did not become "yes" and "no," but has become "yes" in him.

For as many as [are the] promises of God, in him [they are] "yes"; therefore also through him [is] the "amen" to the glory of God through us.