American Standard Version (ASV):
Paul, and Silvanus, and Timothy, unto the church of the Thessalonians in God the Father and the Lord Jesus Christ: Grace to you and peace.
King James Version (KJV):
Paul, and Silvanus, and Timotheus, unto the church of the Thessalonians [which is] in God the Father and [in] the Lord Jesus Christ: Grace [be] unto you, and peace, from God our Father, and the Lord Jesus Christ.