Contradiction with Matthew 6:34
This verse advises not to worry about tomorrow, but to focus on today because each day has enough trouble of its own, suggesting a different approach to fear and anxiety compared to Psalms 46:2.
Matthew 6:34: Take therefore no thought for the morrow: for the morrow shall take thought for the things of itself. Sufficient unto the day [is] the evil thereof.
Contradiction with Ecclesiastes 3:1
This verse speaks about there being a time for everything, including times of fear and trouble, which could be seen as contradictory to the idea of not fearing in Psalms 46:2.
Ecclesiastes 3:1: To every [thing there is] a season, and a time to every purpose under the heaven:
Contradiction with 2 Corinthians 4:8-9
These verses describe being troubled and perplexed, which contrast with the confidence and fearlessness advocated for in Psalms 46:2.
2 Corinthians 4:8-9: [We are] troubled on every side, yet not distressed; [we are] perplexed, but not in despair; [in despair: or, altogether without help, or, means]