'From God' in the Bible

For many fell down wounded, for the war was from God. And they dwelt in their stead even to the exile.

And David, desiring directions from God, said, Am I to go up against the Philistines? and will you give them into my hands? And the Lord said, Go up; for I will give them into your hands.

But later that same night, this message came to Nathan from God: