'Embittered' in the Bible

And every one in distress, and every one that was in debt, and every one of embittered spirit collected round him; and he became a captain over them; and there were with him about four hundred men.

And David was greatly distressed; for the people spoke of stoning him; for the soul of all the people was embittered, every man because of his sons and because of his daughters; but David strengthened himself in Jehovah his God.