Psalm 89:34
"My covenant will I not break, nor alter the thing that is gone out of my lips."
Cross References (ranked by relevance)
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?
Heaven and earth shall pass away, but my words shall not pass away.
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.
For the gifts and calling of God are without repentance.
For I am the LORD, I change not; therefore ye sons of Jacob are not consumed.
Do not abhor us, for thy name’s sake, do not disgrace the throne of thy glory: remember, break not thy covenant with us.
And yet for all that, when they be in the land of their enemies, I will not cast them away, neither will I abhor them, to destroy them utterly, and to break my covenant with them: for I am the LORD their God.
Thus saith the LORD; If ye can break my covenant of the day, and my covenant of the night, and that there should not be day and night in their season;