Proverbs 28:17

A man that doeth violence to the blood of [any] person,.... That sheds the blood of any in a violent manner; that lays violent hands upon a club, and takes away his life, contrary to the law in Genesis 9:6. Or, "that is pressed because of the blood of any person" q; pressed in his own mind; filled with horror, and tortured in his conscience, for the innocent blood he has shed: the letter "daleth" in the word "Adam" is lesser than usual; and Vitringa, on Isaiah 34:6; observes, that it signifies a man red with blood, oppressed in his conscience, and depressed by God, which this minute letter is a symbol of; and thinks it applicable to Edom or Rome: or it signifies one pressed, pursued, and dose followed by the avenger of blood;

shall flee to the pit; let no man stay him; support or help him. When such a murderer flees, and is pursued, and unawares falls into a pit, or is like to do so, let no man warn him of it, or help him out of it; or if he flees to a pit to hide himself, let no man hold him or detain him there, or suffer him to continue in such a lurking place, but discover him or pluck him out; or, if he is a fugitive and a vagabond all his days, as Cain, the murderer of his brother, was, till he comes to the pit of the grave, let no man yield him any support or sustenance.

q עשק בדם "pressus propter sanguinem animae", Amama, Cartwright; so R. Joseph Kimchi in D. Kimchii Sepher Shorash rad. עשק.