NT.filter - kjv bitterness:

kjv@Acts:8:23 @ For I perceive that thou art in the gall of bitterness, and in the bond of iniquity.

kjv@Romans:3:14 @ Whose mouth is full of cursing and bitterness:

kjv@Ephesians:4:31 @ Let all bitterness, and wrath, and anger, and clamour, and evil speaking, be put away from you, with all malice:

kjv@Hebrews:12:15 @ Looking diligently lest any man fail of the grace of God; lest any root of bitterness springing up trouble you, and thereby many be defiled;