1)
Why did David see now that Sha'ul is pursuing him?
1.
Radak: [Sha'ul had ceased, like verse 14 says; now,] Zifim told him that David is hiding there.
2.
Malbim: Until now, Hashgachah saved him; he did not know that Sha'ul pursues him. Now he saw that he pursues him.
2)
What is "ba'Chorshah"?
1.
Radak citing Targum Yonasan: It is a forest.
2.
Radak: It is the name of a place.
