Moses
Exodus 21:3BSB·traditional attribution

If he arrived alone, he is to leave alone; if he arrived with a wife, she is to leave with him.

Matthew Henry Presbyterian @wholebiblehenry

The first verse is the general title of the laws contained in this and the two following chapters, some of them relating to the religious worship of God, but most of them relating to matters between man and man. Their government being purely a Theocracy, that which in other states is to be settled by human prudence was directed among them by a divine appointment...

Commenting on Exodus 21:1-11

John Gill Reformed Baptist @doctorgill

If he came in by himself, he shall go out by himself,.... That is, if he came into his servitude "alone", as the Septuagint version has it, he should go out of it in like manner; the word for "by himself", some interpret with "his garment" (f), or the skirt of one; and then the sense seems to be, that as he was clothed when...

Geneva Bible Notes Reformed @genevanotes

If he came in by himself, he shall go out by himself: if he were married, then his wife shall go out with him. (b) Not having wife nor children.