So much in this Psalm is illustrated by David’s condition in the forests and mountains of Ziph, that it is most appropriate to read it at this time.
Do not suffer might to crush right. Judge my cause and suffer not King Saul to do me wrong
David felt his cause to be so just that he was confident that equity would give a verdict in his favour. We cannot take an unrighteous cause before the Lord, that would be blasphemy; but we may confidently leave a just cause in his hands.
Like Peter, David uses the argument, “Thou knowest all things, thou knowest that I love thee.” It is a most assuring thing to be able to appeal at once to the Lord, and call upon our judge to be a witness for our defence. “Beloved, if our heart condemn us not, then have we confidence towards God.” “Thou hast visited me in the night.” As if he had said, “Lord, thou hast entered my house at all hours; and thou hast seen me when no one else was nigh; thou hast come upon me unawares and marked my unrestrained actions, and thou knowest whether or no I am guilty of the crimes laid at my door.” Happy man, who can thus remember the omniscient eye, and the omnipresent visitor, and find comfort in the remembrance. We too have had our midnight visits from our Lord, and truly they are sweet; so sweet that the recollection of them sets us longing for more of such condescending communings. Lord, if indeed we had been hypocrites, should we have had such fellowship, or have felt such hungerings after a renewal of it?
Divine guidance had kept him in a safe way, as it will us also, if we seek it.
Psalm 17:8, 9
No part of the body is more precious, more tender, and more carefully guarded than the eye; and of the eye no portion is more peculiarly protected than the central apple, the pupil, or, as the Hebrew calls it, “the daughter of the eye.” The All-wise Creator has placed the eye in a well-protected position; it stands surrounded by projecting bones, like Jerusalem encircled by mountains. Moreover, its great Author has surrounded it with many tunics of inward covering, besides the hedge of the eyebrows, the curtain of the eyelids, and the fence of the eyelashes; and, in addition to this, he has given to every man so high a value for his eyes, and so quick an apprehension of danger that no member of the body is more faithfully cared for than the organ of sight. Thus, Lord, keep thou me, for I trust I am one with Jesus, and so a member of his mystical body
A vivid picture of Saul’s pursuit of him. He and his men were surrounded, and their enemies followed after them like wild beasts eager in the hunt, tracking their every step.