'Affirmed' in the Bible

Today you have affirmed that the Lord is your God and that you will walk in His ways, keep His statutes, commands, and ordinances, and obey Him.

And today the Lord has affirmed that you are His special people as He promised you, that you are to keep all His commands,

Jehoshaphat affirmed, “The Lord’s words are with him.” So the king of Israel and Jehoshaphat and the king of Edom went to him.

so they affirmed the proposal and spread the message throughout all Israel, from Beer-sheba to Dan, to come to observe the Passover of Yahweh, the God of Israel in Jerusalem, for they hadn’t observed it often, as prescribed.

The one who has accepted His testimony has affirmed that God is true.