Contradiction with Proverbs 3:5
Proverbs 3:5 encourages trusting in the Lord with all your heart, contradicting Isaiah 50:10's suggestion of fearing the Lord yet being in darkness.
Proverbs 3:5: Trust in the LORD with all thine heart; and lean not unto thine own understanding.
Contradiction with John 12:35
John 12:35 emphasizes walking in the light to avoid darkness, conflicting with Isaiah 50:10's acceptance of walking in darkness.
John 12:35: Then Jesus said unto them, Yet a little while is the light with you. Walk while ye have the light, lest darkness come upon you: for he that walketh in darkness knoweth not whither he goeth.
Contradiction with Psalm 119:105
Psalm 119:105 speaks of God's word as a light, contrasting the walking in darkness in Isaiah 50:10.
Psalm 119:105: NUN. Thy word [is] a lamp unto my feet, and a light unto my path. [lamp: or, candle]
Contradiction with 1 John 1:5
1 John 1:5 states that God is light and in Him there is no darkness, contradicting the idea of fearing the Lord yet experiencing darkness in Isaiah 50:10.
1 John 1:5: This then is the message which we have heard of him, and declare unto you, that God is light, and in him is no darkness at all.