Psalm 89:34

I profane not My covenant, And that which is going forth from My lips I change not.

Numbers 23:19

God is not a man -- and lieth, And a son of man -- and repenteth! Hath He said -- and doth He not do it? And spoken -- and doth He not confirm it?

Jeremiah 33:20

'Thus said Jehovah: If ye do break My covenant of the day, And My covenant of the night, So that they are not daily and nightly in their season,

Leviticus 26:44

and also even this, in their being in the land of their enemies, I have not rejected them, nor have I loathed them, to consume them, to break My covenant with them; for I am Jehovah their God; --

Jeremiah 14:21

Do not despise, for Thy name's sake, Dishonour not the throne of Thine honour, Remember, break not Thy covenant with us.

Malachi 3:6

For I am Jehovah, I have not changed, And ye, the sons of Jacob, Ye have not been consumed.

Matthew 24:35

The heaven and the earth shall pass away, but my words shall not pass away.

Romans 11:29

for unrepented of are the gifts and the calling of God;

James 1:17

every good giving, and every perfect gift is from above, coming down from the Father of the lights, with whom is no variation, or shadow of 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 -- and lieth, And a son of man -- and repenteth! Hath He said -- and doth He not do it? And spoken -- and doth He not confirm it?
Malachi 3:6
For I am Jehovah, I have not changed, And ye, the sons of Jacob, Ye have not been consumed.
Matthew 24:35
The heaven and the earth shall pass away, but my words shall not pass away.
Romans 11:29
for unrepented of are the gifts and the calling of God;
James 1:17
every good giving, and every perfect gift is from above, coming down from the Father of the lights, with whom is no variation, or shadow of turning;