Matthew 24:35

Heaven and earth will pass away, but my words will not pass away.

Romans 11:29

For no change of purpose can annul God's free gift and call.

James 1:17

Every good gift and every perfect boon is from above, and is ever coming down to us from the Father of the heavenly lights, with whom is no variation nor shadow of eclipse.

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

Matthew 24:35
Heaven and earth will pass away, but my words will not pass away.
Romans 11:29
For no change of purpose can annul God's free gift and call.
James 1:17
Every good gift and every perfect boon is from above, and is ever coming down to us from the Father of the heavenly lights, with whom is no variation nor shadow of eclipse.