Contradiction with Genesis 17:1
God asks Abram to walk before Him and be perfect, contrasting the conditional sign of healing in 2 Kings 20:9.
Genesis 17:1: And when Abram was ninety years old and nine, the LORD appeared to Abram, and said unto him, I [am] the Almighty God; walk before me, and be thou perfect. [perfect: or, upright, or, sincere]
Contradiction with Exodus 20:20
Moses tells the people not to fear, while 2 Kings 20:9 presents a test of faith through a sign.
Exodus 20:20: And Moses said unto the people, Fear not: for God is come to prove you, and that his fear may be before your faces, that ye sin not.
Contradiction with Isaiah 7:11
God offers Ahaz a sign in heaven or earth, whereas in 2 Kings 20:9 the sign is specifically offered by the prophet.
Isaiah 7:11: Ask thee a sign of the LORD thy God; ask it either in the depth, or in the height above. [ask it...: or, make thy petition deep]
Contradiction with Matthew 16:4
Jesus says a wicked generation seeks a sign, contrasting the given sign in 2 Kings 20:9.
Matthew 16:4: A wicked and adulterous generation seeketh after a sign; and there shall no sign be given unto it, but the sign of the prophet Jonas. And he left them, and departed.
Contradiction with John 20:29
Jesus blesses those who believe without seeing, opposing Hezekiah’s need for a sign in 2 Kings 20:9.
John 20:29: Jesus saith unto him, Thomas, because thou hast seen me, thou hast believed: blessed [are] they that have not seen, and [yet] have believed.
Paradox #1
The event described involves making the shadow move backward on a staircase. Scientifically, this would contradict the understanding of how shadows and sunlight work, as it suggests a reversal of the Earth's rotation or manipulation of light, both of which lack scientific support or explanation.