Contradiction with Psalms 18:2
This verse describes God as a protector and fortress, which contradicts Psalms 89:41 where protection is lacking.
Psalms 18:2: The LORD [is] my rock, and my fortress, and my deliverer; my God, my strength, in whom I will trust; my buckler, and the horn of my salvation, [and] my high tower. [my strength: Heb. my rock]
Contradiction with Psalm 46:1
It states God is a present help in trouble, contradicting the exposure to enemies in Psalms 89:41.
Psalm 46:1: [To the chief Musician for the sons of Korah, A Song upon Alamoth.] God [is] our refuge and strength, a very present help in trouble. [for: or, of]
Contradiction with Psalm 91:7-10
Assures of God's protection from harm, unlike the vulnerability depicted in Psalms 89:41.
Psalm 91:7-10: A thousand shall fall at thy side, and ten thousand at thy right hand; [but] it shall not come nigh thee.
Contradiction with Isaiah 41:10
God promises strength and support, contrary to the forsakenness in Psalms 89:41.
Isaiah 41:10: Fear thou not; for I [am] with thee: be not dismayed; for I [am] thy God: I will strengthen thee; yea, I will help thee; yea, I will uphold thee with the right hand of my righteousness.
Contradiction with Hebrews 13:5
God promises never to leave or forsake, contradictory to the situation in Psalms 89:41.
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.