'Thank' in the Bible

Then Hezekiah answered and said, "Now {you have consecrated yourselves} to Yahweh. Come near and bring sacrifices and thank offerings to the house of Yahweh!" And the assembly brought sacrifices and thank offerings, and all [who were] willing in heart [brought] burnt offerings.

And he restored the altar of Yahweh and offered sacrifices of peace offerings and thank offerings upon it. And he commanded Judah to serve Yahweh, the God of Israel.