The church at Thessalonica was freaked out about the end of days. They were uninformed about both the return of Jesus and what happens at death. In this short section Paul brilliantly clarifies these questions to encourage the church.
Restore: to bring back to or put back into a former or original state. There might not be a greater truth than God’s ability to restore. It goes further than forgiveness by renewing what was lost or broken. Joel 2 does a prophetic dive into the miraculous work of restoration.