1)
It already said (verse 5) that Pelishtim were in Michmash. Why is this repeated?
1.
Malbim (15-17, 19): Based on nature, Sha'ul was in a bad situation. (a) He had only 600 men. (b) The Pelishti camp was by his capitol city. (c) The Mashchisim (refer to 13:17:1:1) had spread out to destroy. (d) Yisrael had no smiths to make weapons.