Psalm 89:34

I will be true to my agreement; the things which have gone out of my lips will not be changed.

Numbers 23:19

God is not a man, to say what is false; or the son of man, that his purpose may be changed: what he has said, will he not do? and will he not give effect to the words of his mouth

Jeremiah 33:20

The Lord has said: If it is possible for my agreement of the day and the night to be broken, so that day and night no longer come at their fixed times,

Leviticus 26:44

But for all that, when they are in the land of their haters I will not let them go, or be turned away from them, or give them up completely; my agreement with them will not be broken, for I am the Lord their God.

Jeremiah 14:21

Do not be turned from us in disgust, because of your name; do not put shame on the seat of your glory: keep us in mind, let not your agreement with us be broken.

Malachi 3:6

For I am the Lord, I am unchanged; and so you, O sons of Jacob, have not been cut off.

Matthew 24:35

Heaven and earth will come to an end, but my words will not come to an end.

Romans 11:29

Because God's selection and his mercies may not be changed.

James 1:17

Every good and true thing is given to us from heaven, coming from the Father of lights, with whom there is no change or any shade made by turning.

Treasury of Scripture Knowledge

Summary

My covenant will I not break, nor alter the thing that is gone out of my lips.

Bible References

Nor

Numbers 23:19
God is not a man, to say what is false; or the son of man, that his purpose may be changed: what he has said, will he not do? and will he not give effect to the words of his mouth
Malachi 3:6
For I am the Lord, I am unchanged; and so you, O sons of Jacob, have not been cut off.
Matthew 24:35
Heaven and earth will come to an end, but my words will not come to an end.
Romans 11:29
Because God's selection and his mercies may not be changed.
James 1:17
Every good and true thing is given to us from heaven, coming from the Father of lights, with whom there is no change or any shade made by turning.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain