'Truly' in the Bible

Truly in vain is the help that is looked for from the hills, the tumult on the mountains: truly in Jehovah our God is the salvation of Israel.

Woe is me because of my hurt! my wound is grievous: but I said, Truly this is my grief, and I must bear it.

The prophet that prophesieth of peace, when the word of the prophet shall come to pass, then shall the prophet be known, that Jehovah hath truly sent him.