Romans 11:29

For God does not repent of His free gifts nor of His call;

Romans 8:28

Now we know that for those who love God all things are working together for good--for those, I mean, whom with deliberate purpose He has called.

Hebrews 7:21

for these men hold office without any oath having been taken, but He holds it attested by an oath from Him who said to Him, "The Lord has sworn and will not recall His words, Thou art a Priest for ever" --

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