Pull me out of the net - See the notes at Psalm 9:15.
That they have laid privily for me - That my enemies have laid for me. The phrase "laid privily" refers to the custom of "hiding" or "concealing" a net or gin, so that the wild beast that was to be taken could not see it, or would fall into it unawares. Thus, his enemies designed to overcome him, by springing a net upon him at a moment when he was not aware of it, and at a place where he did not suspect it.
For thou art my strength - My stronghold. My hope of defense is in thee, and thee alone.

Pull me out of the net - They have hemmed me in on every side, and I cannot escape but by miracle.

Pull me out of the (b) net that they have laid privily for me: for thou [art] my strength.
(b) Preserve me from the crafty counsels and subtle practise of my enemies.

Pull me out of the net that they have laid privily for me,.... The Ziphites, and Saul, and his men; the former intending treacherously to betray him, and the latter encompassing him about in order to take him; and such was his danger and difficulty, that he saw none but God could deliver him; and he it is that breaks the nets of men, and the snares of the devil, which they secretly lay for the people of God, that they may stumble, and fall, and be taken, and delivers them out of them;
for thou art my strength; the author, giver, and maintainer, both of his natural and spiritual strength; and who was able, and was only able, to pull him out of the net, and extricate him out of the difficulties in which he was.