'Anger' in the Bible

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

And he prayed unto Jehovah, and said, I pray thee, O Jehovah, was not this my saying, when I was yet in my country? Therefore I hasted to flee unto Tarshish; for I knew that thou art a gracious God, and merciful, slow to anger, and abundant in lovingkindness, and repentest thee of the evil.