'Truly' in the Bible

For even now you are full, even now you have wealth, you have been made kings without us: truly, I would be glad if you were kings, so that we might be kings with you.

The secrets of his heart are made clear; and he will go down on his face and give worship to God, saying that God is truly among you.

But now Christ has truly come back from the dead, the first-fruits of those who are sleeping.

Yes, truly, by your pride in me, my brothers in Christ Jesus our Lord, my life is one long death.