Contradiction with Proverbs 3:5
Encourages trust in the Lord with all heart, while 2 Kings 18:18 recounts relying on messengers and human intermediaries.
Proverbs 3:5: Trust in the LORD with all thine heart; and lean not unto thine own understanding.
Contradiction with Jeremiah 17:5
Curses reliance on man, contradicting the reliance on messengers in 2 Kings 18:18.
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.
Contradiction with Isaiah 31:1
Warns against seeking help from men, contrasting with the use of human messengers in 2 Kings 18:18.
Isaiah 31:1: Woe to them that go down to Egypt for help; and stay on horses, and trust in chariots, because [they are] many; and in horsemen, because they are very strong; but they look not unto the Holy One of Israel, neither seek the LORD!
Contradiction with Psalm 146:3
Advises not to trust in princes or human leaders, whereas 2 Kings 18:18 depicts reliance on royal officials.
Psalm 146:3: Put not your trust in princes, [nor] in the son of man, in whom [there is] no help. [help: or, salvation]
Contradiction with Micah 7:5
Advises not to trust a friend or put confidence in a guide, which contrasts with the activity of seeking guidance through messengers in 2 Kings 18:18.
Micah 7:5: Trust ye not in a friend, put ye not confidence in a guide: keep the doors of thy mouth from her that lieth in thy bosom.