Please go and prepare further. Investigate and watch carefully where he goes and who has seen him there, for I am told that he is extremely cunning.
Here, 1. The Ziphites offer their service to Saul, to betray David to him, Sa1 23:19, Sa1 23:20. He was sheltering himself in the wilderness of Ziph (Sa1 23:14, Sa1 23:15), putting the more confidence in the people of that country because they were of his own tribe.
Commenting on 1 Samuel 23:19-29
Go, I pray you, prepare yet,.... That is, go home, return to their habitations, and get things in a greater readiness for him; inquire more diligently after David, get more intelligence of him, and inform themselves more exactly about him: and know and see his place where his haunt is; or "foot" (s) is, where that steps and walks most frequently, not only get knowledge...
1Sa 23:22 In his anxiety, however, lest David should escape him after all, he charged them, “Go, and give still further heed (הכין without לב, as in Jdg 12:6), and reconnoitre and look at his place where his foot cometh (this simply serves as a more precise definition of the nominal suffix in מקומו, his place), who hath seen him there (sc., let them inquire...