1)
What is "Ru'ach Elokim"?
1.
Radak citing Targum Yonasan: It is a Ru'ach of Gevurah.
2)
Why does the verse mention Ru'ach Elokim together with getting angry?
1.
Malbim: When a weak person hears about injustice, he is sad. When a Gibor hears, he gets angry to avenge it. Since he had Ru'ach Elokim, i.e. Ru'ach of Gevurah, he got angry to take vengeance.
