'Spirit' in the Bible

So the God of Israel stirred up the spirit of Pul, king of Assyria, and the spirit of Tiglath-Pilneser, king of Assyria, and he took them [into exile], namely, the Reubenites, the Gadites, and the half-tribe of Manasseh. And he brought them to Halah, Habor, Hara, and the river Gozan, until this day.

Then the Spirit came upon Amasai, chief of the thirty [who said]: "[We are] yours, O David! And [we are] with you, O son of Jesse! Peace! Peace to you, and peace to those who help you, for your God helps you." So David appointed them as heads of the troops.