Charles H. Spurgeon on Psalms 31:4

Pull me out of the net that they have laid privily for me. By these words, he intimates that his enemies did not only by open force come against him, but by cunning and policy attempted to circumvent him, as when they put him on, as Saul instructed them, to be the king's son-in-law, and to this end set him on to get two hundred foreskins of the Philistines for a dowry, under a pretence of goodwill, seeking his ruin; and when wait also was laid for him to kill him in his house. But he trusted in God, and prayed to be delivered, if there should be any the like enterprise against him hereafter. John Mayer.