'Bitter' in the Bible

Thine own wickedness shall correct thee, and thy backslidings shall reprove thee: know therefore and see that it is an evil thing and a bitter, that thou hast forsaken Jehovah thy God, and that my fear is not in thee, saith the Lord, Jehovah of hosts.

Thy way and thy doings have procured these things unto thee; this is thy wickedness; for it is bitter, for it reacheth unto thy heart.

O daughter of my people, gird thee with sackcloth, and wallow thyself in ashes: make thee mourning, as for an only son, most bitter lamentation; for the destroyer shall suddenly come upon us.

Thus saith Jehovah: A voice is heard in Ramah, lamentation, and bitter weeping, Rachel weeping for her children; she refuseth to be comforted for her children, because they are not.