Charles H. Spurgeon on Psalms 7:15

"He made a pit, and digged it." The practice of making pitfalls was anciently not only employed for ensnaring wild beasts, but was also a stratagem used against men by the enemy, in time of war. The idea, therefore, refers to a man who, having made such a pit, whether for man or beast, and covered it over so as completely to disguise the danger, did himself inadvertently tread on his own trap, and fall into the pit he had prepared for another. Pictorial Bible.