A man that doeth violence to the blood of any person shall flee to the pit; let no man stay him.
A man that doeth violence to (or else, that is oppressed-burdened with) the blood of (any) person (Hebrew, a soul; Jeremiah 2:34 ) shall flee to the pit - lashed by the scourges of conscience (Genesis 9:4-5). He shall, like Cain, wander to and fro, until, wearied of life, he casts himself into dangers.
Let no man stay him. This is an exception to Proverbs 24:11, on the ground stated in Numbers 35:33-34; Psalms 109:7. Maurer translates, 'fearing lest men apprehend him.' But the Hebrew negative, al, expresses best a prohibition.