'Certainly Not' in the Bible

He went on to say, "In solemn truth I tell you that some of those who are standing here will certainly not taste death till they have seen the Kingdom of God already come in power."

and whoever gives you a cup of water to drink because you belong to Christ, I solemnly tell you that he will certainly not lose his reward.

I assure you: This generation will certainly not pass away until all these things take place.

Peter told Him, “Even if everyone runs away, I will certainly not!”