Charles Ellicott Commentary 1 Samuel 22:17

"And the king said unto the guard that stood about him, Turn, and slay the priests of Jehovah; because their hand also is with David, and because they knew that he fled, and did not disclose it to me. But the servants of the king would not put forth their hand to fall upon the priests of Jehovah." — 1 Samuel 22:17 (ASV)

The footmen. —“Footmen,” literally runners. These “guards,” or “lictors,” were men who ran by the royal chariot as an escort. They are still the usual attendants of any great man in the East. From long habit they were able to maintain a great speed for a long time. (See 1 Samuel 8:11, where Samuel tells the children of Israel how the king of the future, whom they asked for, would take some of them to run before his chariot. See also, for an example of the power of running in ancient times, 1 Kings 18:46, when Elijah outstripped the chariot of Ahab.)

But the servants of the king would not put forth their hand. —“And thus they were more faithful to Saul than if they had obeyed his order, which was against the commandment of the Lord, whose servant the king was, no less than they themselves were.”— Wordsworth.