Deuteronomy 23:15

Do not return a slave to his master if he has taken refuge with you.
BSB · Berean Standard Bible
Thou shalt not deliver unto his master the servant which is escaped from his master unto thee:
KJV · King James Version
You shall not deliver to his master a servant who has escaped from his master to you.
WEB · World English Bible
Thou shalt not deliver unto his master a servant that is escaped from his master unto thee:
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

Deuteronomy 23:15
We cannot suppose that this law required the Israelites to entertain slaves who had robbed their masters, or left their service without cause; but such only as were cruelly treated, and fled to them for protection, especially from the neighbouring nations. To such they were commanded to afford shelter, and shew great kindness.
1 Samuel 30:15; Obadiah 1:14