'Anger' in the Bible

Who knoweth but that God will turn and repent, and will turn away from his fierce anger, that we perish not?

And he prayed unto Jehovah, and said, Ah, Jehovah, was not this my saying when I was yet in my country? Therefore I was minded to flee at first unto Tarshish; for I knew that thou art a gracious God, and merciful, slow to anger, and of great loving-kindness, and repentest thee of the evil.