Contradiction with Psalm 46:1
While Jeremiah 17:17 speaks of God as a source of fear, Psalm 46:1 describes God as a refuge and strength, a very present help in trouble, indicating comfort and protection rather than fear.
Psalm 46:1: [To the chief Musician for the sons of Korah, A Song upon Alamoth.] God [is] our refuge and strength, a very present help in trouble. [for: or, of]
Contradiction with 1 John 4:18
Jeremiah 17:17 refers to fear in relation to God, whereas 1 John 4:18 emphasizes that perfect love, which comes from God, casts out fear.
1 John 4:18: There is no fear in love; but perfect love casteth out fear: because fear hath torment. He that feareth is not made perfect in love.
Contradiction with Isaiah 41:10
Jeremiah 17:17 suggests a reason to fear, but Isaiah 41:10 offers reassurance against fear, with God promising to strengthen and help.
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 Proverbs 18:10
Jeremiah 17:17 implies fear, while Proverbs 18:10 portrays the name of the Lord as a strong tower, a safe haven from harm.
Proverbs 18:10: The name of the LORD [is] a strong tower: the righteous runneth into it, and is safe. [safe: Heb. set aloft]