Here is a description of the worst of sinners, whose hearts are fully set in them to do evil. 1. They set that at defiance which would deter and detain them from sin: An ungodly witness is one that bears false witness against his neighbour, and will forswear himself to do another a mischief, in which there is not only great injustice, but great impiety; this is one of the worst of men. Or an ungodly witness is one that profanely and atheistically witnesses against religion and godliness, whose instructions seduce from the words of knowledge (Pro 19:27); such a one scorns judgment, laughs at the terrors of the Lord, mocks at that fear, Job 15:26. Tell him of law and equity, that the scriptures and an oath are sacred things, and not to be jested with, that there will come a reckoning day; he laughs at it all, and scorns to heed it. 2. They are greedy, and glad of that which gives them an opportunity to sin: The mouth of the wicked eagerly devours iniquity, drinks it in like water, Job 15:16.