This is a deep topic. First, God is not the author of evil [James 1:13, Ezekiel 33:10-11]. You can read through Genesis 2-3 to get a good idea of why we're separated from God in the first place. God doesn't owe us forgiveness- as Creator he has every right not to save anyone. It's out of His grace that forgiveness/reconciliation is offered. A lot of people have trouble with the idea of a God who punishes/will punish their wrongdoings, but the central message of the Bible (back to that Ezekiel reference agin) is that God saves us *because He loves us* and that we are saved not simply from our own evil, but from *His just wrath*.
How then is God a just judge, if He both promises to judge evil and refrains from punishing those who are forgiven? Their punishment is poured out on Jesus instead. That's the Gospel. He died willingly so that they can have life. If you believe, this is for you too.
How then is God a just judge, if He both promises to judge evil and refrains from punishing those who are forgiven? Their punishment is poured out on Jesus instead. That's the Gospel. He died willingly so that they can have life. If you believe, this is for you too.