And they lay wait for their own blood; they lurk privily for {o} their own lives.

(o) He shows that there is no reason to move these wicked to spoil the innocent, aside from their malice and cruelty.

Wesley's Notes

1:18 Their own blood - The destruction which they design to others, fall upon themselves.

Matthew Henry's Concise Commentary

1:10-19 Wicked people are zealous in seducing others into the paths of the destroyer: sinners love company in sin. But they have so much the more to answer for. How cautious young people should be! Consent thou not. Do not say as they say, nor do as they do, or would have thee to do; have no fellowship with them. Who could think that it should be a pleasure to one man to destroy another! See their idea of worldly wealth; but it is neither substance, nor precious. It is the ruinous mistake of thousands, that they overvalue the wealth of this world. Men promise themselves in vain that sin will turn to their advantage. The way of sin is down-hill; men cannot stop themselves. Would young people shun temporal and eternal ruin, let them refuse to take one step in these destructive paths. Men's greediness of gain hurries them upon practices which will not suffer them or others to live out half their days. What is a man profited, though he gain the world, if he lose his life? much less if he lose his soul?