I see it this way. God created both evil and good (Isa 45:7), for a purpose, and uses evil for his purpose. For example, “The LORD hath made all things for himself: yea, even the wicked for [a purpose:] the day of evil� (Pro 16:4). But God is not evil himself. This might sound bad, but I think of Satan as God's hand, more so a tool (figuratively speaking).
"But put forth thine hand now, and touch all that he hath, and he will curse thee to thy face" (Job 1:11).
But was it God's actual and literal hand that touched "all that [Job]" had? No:
"And the LORD said unto Satan, Behold, all that he hath is in thy power; only upon himself put not forth thine hand. So Satan went forth from the presence of the LORD� (Job 1:12).
Satan said, "…put forth thine hand now,� but God’s hand was not literally put forth against Job, but Satan himself. Satan is, in a way, God’s hand, because God uses him as a tool (as humans use hammers to drive nails into wood).
God “created the waster to destroy� (Isa 54:16). Rather than God destroying things himself, he sends Satan to do it for him. But, nevertheless, God is behind it; just like a human hand does not pound in a nail, but a hammer, and yet the human still controls the hammer.
Do any of you understand what I am getting at?