John Gill's Bible Commentary Ver. 5. And if the avenger of blood pursue after him , etc.] To the city of refuge, whither he is fled, and demand him: then they shall not deliver the slayer up into his hands ; to be slain by him, but shall protect him: because he smote his neighbour unwittingly, and hated him not beforetime ; (see Gill on “ Numbers 35:22-23”), and (see Gill on “ Deuteronomy 19:6”).
Matthew Henry Commentary
Verses 1-6 - When the Israelites were settled in their promised inheritance, the were reminded to set apart the cities of refuge, whose use and typica meaning have been explained, Nu 35; De 19. God's spiritual Israel have and shall have in Christ and heaven, not only rest to repose in, but refuge to secure themselves in. These cities were designed to typif the relief which the gospel provides for penitent sinners, and their protection from the curse of the law and the wrath of God, in our Lor Jesus, to whom believers flee for refuge, Heb 6:18.
Original Hebrew וכי3588 ירדף7291 גאל1350 הדם1818 אחריו310 ולא3808 יסגרו5462 את853 הרצח7523 בידו3027 כי3588 בבלי1097 דעת1847 הכה5221 את853 רעהו7453 ולא3808 שׂנא8130 הוא1931 לו מתמול8543 שׁלשׁום׃8032