Contradiction with Psalm 55:22
This verse emphasizes casting burdens on the Lord, but Psalms 81:6 speaks of God removing burdens himself.
Psalm 55:22: Cast thy burden upon the LORD, and he shall sustain thee: he shall never suffer the righteous to be moved. [burden: or, gift]
Contradiction with Matthew 11:30
States that Christ's yoke is easy and burden is light, differing from the direct removal of burdens described in Psalms 81:6.
Matthew 11:30: For my yoke [is] easy, and my burden is light.
Contradiction with Galatians 6:2
Encourages believers to bear one another's burdens, which contrasts with the notion of God directly taking burdens away in Psalms 81:6.
Galatians 6:2: Bear ye one another's burdens, and so fulfil the law of Christ.