Deuteronomy 19:13

Thine eye shall not pity him,.... This is not said to the avenger of blood, who is not to be supposed to have any pity or compassion on such a person, but to the elders, judges, and civil magistrates of the city to which he belonged, who took cognizance of his case; these were to show him no favour on account of his being a citizen, a neighbour, a relation or friend, or a rich man, or on any account whatever; but without favour or affection were to judge him and put him to death as a murderer; see Numbers 35:21,

but thou shall put away the guilt of innocent blood from Israel; by which they would be defiled, and be liable to punishment for it; see

Numbers 35:33, the Targum of Jonathan is,

"shall put away those that shed innocent blood out of Israel;''

put them away by death:

that it may go well with thee; with the whole land and its inhabitants, and with the city particularly, and the magistrates, and men of it, to which the murderer condemned to death belonged, being continued in the enjoyment of all temporal blessings and mercies.