1)
What is the meaning of "va'Yira"?
1.
Radak: (He feared.) It is written with only the Yud due to the conjugation 1 ; the Yud of the root is omitted.
1
The text should say "Eitan". (PF)
2)
Why does it say now that Sha'ul feared David?
1.
Malbim (11, 12): David's eyes were on the harp. He did not see Sha'ul trying to strike him. Hashem caused him to move without intent; Sha'ul saw that Hashgachah and Hashem are with David, and left Sha'ul.
