His liver, i.e. his vital parts, whereof the liver is one. Till his life be lost, as it is explained in the next clause. Knoweth not; which may be referred either to a foolish and inconsiderate young man; or to the silly bird to which he is compared, which comes to the same thing.
Related Commentaries of Proverbs 7:23
Proverbs 7:23
23 Till a dart strike through his liver; as a bird hasteth to the snare, and knoweth not that it is for his life.