If everything has a purpose then evil doesn't exist

[R-Farmer]

Sin boils down to anything not in the expressed will of God. Evil is the love of sin. In essence Sin is the ability to be independent of God's expressed will/God's law.

Jesus verifies this in Luke 11 that 'we' here in this world are Not apart of God's immediate kingdom and therefore His will is not done on earth the same way it is followed in Heaven. meaning we on earth can in fact be outside of God's will. The proof of this comes in the way of Evil or rather the ability to love and embrace our sin.

But since God creates evil (present tense), then people committing evil are enacting, not denying, God’s will.

Boru

God allows mankind to Love their sin. Which is what evil is. God does not put this love of sin in our heart. That is something we do on our own.