Contradiction with Philippians 4:6
This verse says to be anxious for nothing, which contradicts the expression of distress and questioning in Psalms 42:5.
Philippians 4:6: Be careful for nothing; but in every thing by prayer and supplication with thanksgiving let your requests be made known unto God.
Contradiction with 1 Thessalonians 5:16
This verse calls for constant rejoicing, in contrast to the despair and downcast spirit in Psalms 42:5.
1 Thessalonians 5:16: Rejoice evermore.
Contradiction with Matthew 6:25
This verse advises against worrying about life, which contradicts the sense of turmoil in Psalms 42:5.
Matthew 6:25: Therefore I say unto you, Take no thought for your life, what ye shall eat, or what ye shall drink; nor yet for your body, what ye shall put on. Is not the life more than meat, and the body than raiment?
Contradiction with John 14:1
This verse tells believers not to let their hearts be troubled, opposing the troubled soul in Psalms 42:5.
John 14:1: Let not your heart be troubled: ye believe in God, believe also in me.