Contradiction with Proverbs 17:22
Describes a merry heart as good medicine, contrasting with the notion of joy on beds suggested in Psalms 149:5.
Proverbs 17:22: A merry heart doeth good [like] a medicine: but a broken spirit drieth the bones. [like: or, to]
Contradiction with Ecclesiastes 3:4
Talks about a time to weep and a time to dance, suggesting different times for emotions, in contrast to rejoicing on beds continuously.
Ecclesiastes 3:4: A time to weep, and a time to laugh; a time to mourn, and a time to dance;
Contradiction with Isaiah 26:9
Emphasizes longing for God at night, whereas Psalms 149:5 emphasizes joy.
Isaiah 26:9: With my soul have I desired thee in the night; yea, with my spirit within me will I seek thee early: for when thy judgments [are] in the earth, the inhabitants of the world will learn righteousness.
Contradiction with Matthew 6:6
Advises praying in private, in contrast to singing aloud upon beds.
Matthew 6:6: But thou, when thou prayest, enter into thy closet, and when thou hast shut thy door, pray to thy Father which is in secret; and thy Father which seeth in secret shall reward thee openly.