Paul, Silvanus, and Timothy, to the assembly of the Thessalonians in God the Father and the Lord Jesus Christ: Grace to you and peace from God our Father and the Lord Jesus Christ.
unto the church of the Thessalonians: This letter is addressed to "not merely isolated believers, but to a corporate body" (Jamieson, Faucet, and Brown 384). "Wherever there were believers there was a church" (Hogg and Vine 19).