Now then, we are ambassadors for Christ, as though God were pleading through us: we implore you on Christ's behalf, be reconciled to God.
2 Corinthians 5:20
Surrounding context
5:19 that is, that God was in Christ reconciling the world to Himself, not imputing their trespasses to them, and has committed to us the word of reconciliation.
5:20 Now then, we are ambassadors for Christ, as though God were pleading through us: we implore you on Christ's behalf, be reconciled to God.
5:21 For He made Him who knew no sin to be sin for us, that we might become the righteousness of God in Him.