'Truly' in the Bible

So he said, “What then is to be done for her?” And Gehazi answered, “Truly she has no son and her husband is old.”

Truly, O Lord, the kings of Assyria have devastated the nations and their lands

because your heart was tender and you humbled yourself before the Lord when you heard what I spoke against this place and against its inhabitants that they should become a desolation and a curse, and you have torn your clothes and wept before Me, I truly have heard you,” declares the Lord.