Acts.8.23For I see that you are in the gall of bitterness and in the bond of iniquity.”
Rom.3.14“ Their mouth is full of curses and bitterness.”
Eph.4.31Let all bitterness and wrath and anger and clamor and slander be put away from you, along with all malice.
Heb.12.15See to it that no one fails to obtain the grace of God; that noroot of bitternesssprings up and causes trouble, and by it many become defiled;