Sovereign YHWH uses both the righteous and the wicked, the believer and the non-believer, for His purposes. Did you know He even anoints and empowers people who don’t know Him? He does it “for the sake of Ya’akov”…Israel.
Thus says Adonai to Koresh, his anointed, whose right hand he has grasped, so that he subdues nations before him and strips kings of their robes, so that doors open in front of him, and no gates are barred: “I will go ahead of you, levelling the hills, shattering the bronze gates, smashing the iron bars. I will give you treasures hoarded in the dark, secret riches hidden away, so that you will know that I, Adonai, calling you by your name, am the God of Isra’el. It is for the sake of Ya‘akov my servant, yes, for Isra’el my elect, that I call you by your name and give you a title, although you don’t know me. I am Adonai; there is no other; besides me there is no God. I am arming you, although you don’t know me, so that those from the east and those from the west will know that there is none besides me — I am Adonai; there is no other. I form light, I create darkness; I make well-being, I create woe; I, Adonai, do all these things. ~~ Isaiah 45: 1-7