1 Samuel 23:27

But there came a messenger unto Saul
From his court, by order of his council there; though the Jews ^F20 say it was an angel from heaven; but be it which it will, it was certainly the providence of God that directed this affair, that a messenger should come to Saul just at that very time that David was like to fall into his hands:

saying, haste thee, and come, for the Philistines have invaded the
land;
were come into it, and spread themselves in it, as the word signifies, which expresses their numbers they had poured in, the force they came with, and the possessions they had already got; perhaps they had taken the advantage of Saul's departure in quest of David, to penetrate into the tribe of Benjamin, where his patrimony, residence, and court were, and which were liable to fall into their hands; and therefore his presence was immediately required, and haste was necessary.