Matthew 24:35

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

Romans 11:29

for God's gifts and calling are irrevocable.

James 1:17

every good gift, and every perfect gift is from above, and comes down from the Father of lights, with whom there is no change, nor slightest trace 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

Matthew 24:35
Heaven and earth shall pass away, but my words shall not pass away.
Romans 11:29
for God's gifts and calling are irrevocable.
James 1:17
every good gift, and every perfect gift is from above, and comes down from the Father of lights, with whom there is no change, nor slightest trace of turning.