Why did the Pelishti officers go out?
Rashi: They wanted to plunder Yisrael.
Malbim: David cut off Pelishtim's Orlah in the way of disgrace, not the way of war. This aroused them to fight him until death, like Sha'ul intended.
What is the meaning of "Midei Tzeisam"?
Radak: Whenever they went out. The same applies to "Midei Alosah Beis Hashem" (1:7), "Midei Chodesh b'Chadsho" (Yeshayah 66:23), "Midei Dabri Bo" (Yirmeyah 31:19).
What is the meaning of "Sachal David"?
Radak: He succeeded.
What is the meaning of "va'Yikar Shmo"?
Radak: He was honored in the eyes of all who heard about him.
Radak citing Midrash Shmuel 22:2: He was expert in Halachah. When Pelishtim heard that he married, they attacked, for it says "Ki Yikach Ish Ishah Chadashah Lo Yetzei ba'Tzava" (Devarim 24:5) They did not know that David was a Chacham, and expounded that this is for an optional war, but even a Chasan fights in a war of Mitzvah.
