When he knoweth — As soon as he knoweth it, he must not delay to make his peace with God. Otherwise he shall be guilty — For his violation and contempt of God's authority and command.
Related Commentaries of Leviticus 5:3
Leviticus 5:3
3 Or if he touch the uncleanness of man, whatsoever uncleanness it be that a man shall be defiled withal, and it be hid from him; when he knoweth of it, then he shall be guilty.