'Bitterly' in the Bible

and Peter recollected the words of Jesus, how He had said, "Before the cock crows you will three times disown me." And he went out and wept aloud, bitterly.

To all this the Pharisees listened, bitterly jeering at Him; for they were lovers of money.

And he went out and wept aloud bitterly.

And while I was weeping bitterly, because no one was found worthy to open the book or look into it,