'Truth' in the Bible

Of a truth, LORD, the kings of Assyria have destroyed the nations and their lands,

This will be your confirmation that I have spoken the truth: This year you will eat what grows wild, and next year what grows on its own from that. But in the third year you will plant seed and harvest crops; you will plant vines and consume their produce.

I beseech thee, O LORD, remember now how I have walked before thee in truth and with a perfect heart, and have done that which is good in thy sight. And Hezekiah wept sore.

Then said Hezekiah unto Isaiah, Good is the word of the LORD which thou hast spoken. And he said, Is it not good, if peace and truth be in my days?