'Certainly' in the Bible

That is why we wanted to come to you. Certainly I, Paul, wanted to come time and again, but Satan blocked our way.

For most certainly, when we were with you, we told you beforehand that we are to suffer affliction, even as it happened, and you know.

For we say this to you by a revelation from the Lord: We who are still alive at the Lord’s coming will certainly have no advantage over those who have fallen asleep.