'Warned' in the Bible

A man came from God and warned him, "Your majesty, don't let the army of Israel accompany you into battle, because the LORD isn't with any of the descendants of Ephraim.

But a prophet of the LORD was there named Oded. He went out to greet the army as it arrived in Samaria. He warned them, "Look! Because the LORD God of your ancestors was angry at Judah, he delivered them into your control, but you have killed them with a vehemence that has reached all the way to heaven!