Contradiction with Isaiah 62:4
While Psalms 31:12 speaks of being forgotten and disregarded, this verse proclaims that God's people will not be forsaken but will be called "Hephzibah" and "Beulah," indicating delight and being espoused.
Isaiah 62:4: Thou shalt no more be termed Forsaken; neither shall thy land any more be termed Desolate: but thou shalt be called Hephzibah, and thy land Beulah: for the LORD delighteth in thee, and thy land shall be married. [Hephzibah: that is, My delight is in her] [Beulah: that is, Married]
Contradiction with Hebrews 13:5
This verse states, "I will never leave thee, nor forsake thee," which directly contradicts the feeling of being forgotten and cast aside in Psalms 31:12.
Hebrews 13:5: [Let your] conversation [be] without covetousness; [and be] content with such things as ye have: for he hath said, I will never leave thee, nor forsake thee.
Contradiction with Matthew 28:20
Jesus assures, "I am with you alway, even unto the end of the world," contrasting the sense of abandonment in Psalms 31:12.
Matthew 28:20: Teaching them to observe all things whatsoever I have commanded you: and, lo, I am with you alway, [even] unto the end of the world. Amen.
Contradiction with Isaiah 49:15
God reassures that even if a mother could forget her child, He will not forget His people, which contradicts the feeling of being forgotten in Psalms 31:12.
Isaiah 49:15: Can a woman forget her sucking child, that she should not have compassion on the son of her womb? yea, they may forget, yet will I not forget thee. [that...: Heb. from having compassion]
Contradiction with John 14:18
"I will not leave you comfortless: I will come to you," contradicts the sense of being forgotten and solitary in Psalms 31:12.
John 14:18: I will not leave you comfortless: I will come to you. [comfortless: or, orphans]
Contradiction with Deuteronomy 31:8
This verse assures that the Lord goes before and will not fail or forsake, opposing the sense of being forgotten expressed in Psalms 31:12.
Deuteronomy 31:8: And the LORD, he [it is] that doth go before thee; he will be with thee, he will not fail thee, neither forsake thee: fear not, neither be dismayed.