1 Samuel 30:16

And when he had brought him down
To the place where the company of the Amalekites were, or near it:

behold, [they were] spread abroad upon all the earth;
they were not in any regular order, and much less in any military form, but lay about in the fields, scattered here and there, were in detached parties:

some eating and drinking;
in one place:

and dancing;
others, in another place, expressing their joy, and perhaps their thankfulness to their idols

because of the great spoil they had taken out of the land of the
Philistines, and out of the land of Judah;
from Ziklag, and from the south of the Cherethites, and the south of Judah, they had invaded, ( 1 Samuel 30:14 ) ; and here they were in the greatest security; knowing: that the armies of the Philistines were gone into the land of Israel, and were about to engage in battle with the Israelites, and David they supposed was with the Philistines, so that they had nothing to fear from any quarter; and thus it is often, that when men cry peace, peace, sudden destruction comes upon them.