Contradiction with Numbers 23:19
This verse states that God does not lie or change His mind, while 1 Chronicles 17:19 implies God can change His declarations based on His will.
Numbers 23:19: God [is] not a man, that he should lie; neither the son of man, that he should repent: hath he said, and shall he not do [it]? or hath he spoken, and shall he not make it good?
Contradiction with James 1:17
This verse suggests that God does not change or vary, whereas 1 Chronicles 17:19 implies God can alter His course for His servant's sake.
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
This verse declares that God does not change, contrasting with the impression in 1 Chronicles 17:19 that God may act variably according to His promises.
Malachi 3:6: For I [am] the LORD, I change not; therefore ye sons of Jacob are not consumed.