Contradiction with Isaiah 40:29
While Isaiah 46:2 speaks of the burdened idols unable to deliver, Isaiah 40:29 emphasizes God's strength given to the weary.
Isaiah 40:29: He giveth power to the faint; and to [them that have] no might he increaseth strength.
Contradiction with Matthew 11:28
Isaiah 46:2 describes idols unable to relieve burdens, whereas Matthew 11:28 invites the weary to find rest in Jesus.
Matthew 11:28: Come unto me, all [ye] that labour and are heavy laden, and I will give you rest.
Contradiction with Psalm 55:22
The contrast is in casting burdens on the Lord versus idols failing to ease burdens in Isaiah 46:2.
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 Isaiah 41:10
This verse offers God's reassurance, opposing the impotence of idols noted in Isaiah 46:2.
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 1 Peter 5:7
It encourages casting care upon God for He cares, conflicting with idols in Isaiah 46:2 that cannot help.
1 Peter 5:7: Casting all your care upon him; for he careth for you.
Contradiction with Jeremiah 17:5
Highlights trust in the Lord over man-made idols, which falter as seen in Isaiah 46:2.
Jeremiah 17:5: Thus saith the LORD; Cursed [be] the man that trusteth in man, and maketh flesh his arm, and whose heart departeth from the LORD.