'Certainly' in the Bible

For I most certainly, as being absent in body but present in spirit, have already, as though I were present, judged him who has done this thing.

and not certainly with the whoremongers of this world, or with the covetous, or extortioners, or idolaters, seeing ye ought then to go forth out of the world --

You know that your bodies belong to the Messiah, don't you? Should I take what belongs to the Messiah and unite them with a prostitute? Certainly not!

Or does He speak entirely for our sake? Yes, it was written for our sake: The plowman ought to plow in hope, and the thresher to thresh in hope of sharing the harvest.

What! Do you not have houses in which to eat and drink? Or do you show contempt for the church of God and humiliate those [impoverished believers] who have nothing? What will I say to you? Shall I praise you for this? In this I will not praise you!

But now [as things really are] there are many parts [different limbs and organs], but a single body.

For you are certainly giving thanks well, but the other person is not strengthened.

the secrets of his heart are disclosed; and so he will fall on his face and worship God, declaring that God is certainly among you.