Contradiction with 1 Samuel 15:29
God is described as not regretting or repenting, which contradicts the notion that instructions given are susceptible to change.
1 Samuel 15:29: And also the Strength of Israel will not lie nor repent: for he [is] not a man, that he should repent. [Strength: or, Eternity, or, Victory]
Contradiction with James 1:17
States that God does not change or vary, conflicting with the idea of issuing variable instructions like in Jeremiah 32:13.
James 1:17: Every good gift and every perfect gift is from above, and cometh down from the Father of lights, with whom is no variableness, neither shadow of turning.
Contradiction with Malachi 3:6
Asserts that God does not change, which contradicts the idea of modifying commands or instructions.
Malachi 3:6: For I [am] the LORD, I change not; therefore ye sons of Jacob are not consumed.