Faith gives us the certainty that God would not permit an evil if He did not cause a good to come from that very evil, by ways that we shall fully know only in eternal life. (Catechism of the Catholic Church 324)
From the grudging respect department. Some people say: How can I believe in God, when I see so much evil?
Two things to respect here:
1. Having the honesty to see evil and call it evil. Doing so is actually an act of faith in the goodness of God. Because to call evil evil requires measuring it against good. If you don’t measure evil against good, evil isn’t evil. It’s just “stuff.”
For instance, Pontius Pilate would not have described the crucifixion of the perfectly innocent divine Lamb as “evil.” The Roman historian Tacitus wrote in AD 64: “Christus, from whom name of the sect has its origin, suffered the extreme penalty during the reign of Tiberius.” Calling evil evil is good. Calling evil by a bureaucratic euphemism is evil.
2. The one who says, “I won’t believe, because I see so much evil,” also deserves credit for this: Taking us believers at our word when we say we believe in God Almighty.
You cannot compromise with the word omnipotent. God is omnipotent. There is nothing at all, except what He wills. He wills good. He wills to permit evil.
If God isn’t omnipotent, He’s not God. We tend to imagine God as a kind of nice pet who soothes our feelings. We want Him to follow the rules of niceness that we follow. Except that He obviously doesn’t.
So we concede the admirable nobility of mind that moves someone to say: I won’t believe, because I see so much evil.
Amen. We don’t believe in Mr. Nice Happy Pet God, either. We fearlessly gaze at the evil you see, and we give it its proper name. We don’t believe in Mr. Everything is Lovely Everything is Great God.
But you have not grasped Who we believe in. You think we believe in a god who engages in some kind of on-going competition with Satan, as if the two were on the same plane.
No. We believe in the one and only true, omnipotent God: Jesus Christ, the eternal Son of the eternal Father. Jesus Christ crucified and risen. There is no God but He.
From His point-of-view, and from His point-of-view alone: it all makes sense. He knows all the good that comes even from the gravest evil. He knows the all-conquering power of divine love. On the cross, we see that He knows it.
We do not claim to know it. We only claim to believe in Him.