So then, dear brothers and sisters, be firm. Do not be moved! Always be outstanding in the work of the Lord, knowing that your labor is not in vain in the Lord.
For this reason, I have sent Timothy to you, who is my dear and faithful son in the Lord. He will remind you of my ways in Christ, as I teach them everywhere in every church.
From Paul, an apostle of Christ Jesus by the will of God, and Timothy our brother, to the church of God that is in Corinth, with all the saints who are in all Achaia.