2 Corinthians 5:18
Now all these things are from God, who reconciled us to Himself through Christ and gave us the ministry of reconciliation,…
Through Jesus Christ we have been reconciled to God. Reconciled means to restore relationship with, and to make an exchange. He took our sin on the cross so that we could receive His righteousness. It is this righteousness (right standing with God) that gives us the right to all that we have in Christ. We now have a ministry to go and reconcile others to God.
In the verse that follows the above scripture it goes on to tell us that God was in Christ Jesus reconciling the world to Himself, no longer counting their sins against them. To reconcile others to Christ we need to let people know that God has already dealt with their sins through the cross. The Ten Commandments will reveal to them their sin nature within their heart that Jesus has shed His blood to cleanse them from, and God is waiting with arms open wide for them to come home to Him.
In the eyes of God the world has been reconciled to Him for there is nothing more that He needs to do. They simply need to turn to God and put their faith in Him, receiving Jesus as the Lord of their life. Time for the church to go and shine their light to those in darkness and to let them know God is waiting on them to receive them back into fellowship. If they will repent (turn to God) and call upon the name of the Lord they shall be saved from the wrath to come.