Saul took
1 Samuel 13:2
Saul chose him three thousand men of Israel; whereof two thousand were with Saul in Michmash and in mount Bethel, and a thousand were with Jonathan in Gibeah of Benjamin: and the rest of the people he sent every man to his tent.
and went
Psalm 37:32
The wicked watcheth the righteous, and seeketh to slay him.
Psalm 38:12
They also that seek after my life lay snares for me: and they that seek my hurt speak mischievous things, and imagine deceits all the day long.
the rocks
Psalm 104:18
The high hills are a refuge for the wild goats; and the rocks for the conies.
Psalm 141:6
When their judges are overthrown in stony places, they shall hear my words; for they are sweet.