Contradiction with James 3:6
This verse describes the tongue as a world of iniquity that can defile the whole body, which contrasts with the idea of the mouth of the righteous being a well of life.
James 3:6: And the tongue [is] a fire, a world of iniquity: so is the tongue among our members, that it defileth the whole body, and setteth on fire the course of nature; and it is set on fire of hell. [course: Gr. wheel]
Contradiction with Matthew 12:34
This verse states that the mouth speaks what the heart is full of, implying that if the heart is not righteous, the mouth cannot be a well of life.
Matthew 12:34: O generation of vipers, how can ye, being evil, speak good things? for out of the abundance of the heart the mouth speaketh.
Contradiction with Isaiah 6:5
Here, Isaiah acknowledges his unclean lips and sinful nature, contradicting the notion of the mouth being inherently life-giving.
Isaiah 6:5: Then said I, Woe [is] me! for I am undone; because I [am] a man of unclean lips, and I dwell in the midst of a people of unclean lips: for mine eyes have seen the King, the LORD of hosts. [undone: Heb. cut off]
Contradiction with Psalm 52:2
Describes the tongue as devising mischief and being like a sharp razor, which opposes the portrayal of a mouth as a well of life.
Psalm 52:2: Thy tongue deviseth mischiefs; like a sharp razor, working deceitfully.
Contradiction with Romans 3:13-14
These verses describe mouths full of cursing and bitterness, which stands in contrast to the idea of a righteous person’s mouth being life-giving.
Romans 3:13-14: Their throat [is] an open sepulchre; with their tongues they have used deceit; the poison of asps [is] under their lips: