'Bitter' in the Bible

A curse, a curse on Meroz! said the angel of the Lord. A bitter curse on her townspeople! Because they came not to the help of the Lord, to the help of the Lord among the strong ones.

And the sons of Dan say unto him, 'Let not thy voice be heard with us, lest men bitter in soul fall upon you, and thou hast gathered thy life, and the life of thy household;'

And the people came to Beth-el, waiting there till evening before God, and gave themselves up to bitter weeping.