11 But if any man has hate for his neighbour, and waiting for him secretly makes an attack on him and gives him a blow causing his death, and then goes in flight to one of these towns; 12 The responsible men of his town are to send and take him, and give him up to the one who has the right of punishment to be put to death. 13 Have no pity on him, so that Israel may be clear from the crime of putting a man to death without cause, and it will be well for you.

Matthew Henry's Commentary on Deuteronomy 19:11-13

Commentary on Deuteronomy 19:1-13

(Read Deuteronomy 19:1-13)

Here is the law settled between the blood of the murdered, and the blood of the murderer; provision is made, that the cities of refuge should be a protection, so that a man should not die for that as a crime, which was not his willing act. In Christ, the Lord our Righteousness, refuge is provided for those who by faith flee unto him. But there is no refuge in Jesus Christ for presumptuous sinners, who go on still in their trespasses. Those who flee to Christ from their sins, shall be safe in him, but not those who expect to be sheltered by him in their sins.