1)
What was the Ru'ach?
1.
'Rashi' #1: It is one of the angels mentioned above ("Tzva ha'Shamayim" ? verse 18) ? "Oseh Mal'achav Ruchos" (Tehilim 104:4).
2.
'Rashi' #2, Rashi (Melachim I, 22:21), both from Sanhedrin 89a: It was the Ru'ach of Navos.
3.
Refer to Melachim I, 22:21:1:3.
2)
Why did Hashem ask how it will entice him?
1.
Refer to Melachim I, 22:21:2:1.
