If God exists, why is there evil and suffering?
The Objection
A good, all-powerful God would eliminate evil. Since evil exists, God cannot.
The Response
God permits suffering because he values free will and works through suffering for greater goods. The cross itself is the greatest evil producing the greatest good — God doesn't merely observe suffering, in Christ he entered it.
Go Deeper: C.S. Lewis, The Problem of Pain · Alvin Plantinga's Free Will Defense