The Apostle Paul
Ephesians 1:2ESV·traditional attribution

Grace to you and peace from God our Father and the Lord Jesus Christ.

Matthew Henry Presbyterian @wholebiblehenry

Here is, 1. The title St. Paul takes to himself, as belonging to him - Paul, an apostle of Jesus Christ, etc. He reckoned it a great honour to be employed by Christ, as one of his messengers to the sons of men. The apostles were prime officers in the Christian church, being extraordinary ministers appointed for a time only.

Commenting on Ephesians 1:1-2

John Gill Reformed Baptist @doctorgill

Grace be to you, and peace from God,.... See Gill on Rom 1:7. . Ephesians 1:3 eph 1:3 eph 1:3 eph 1:3Blessed be the God and Father of our Lord Jesus Christ,.... God, the first person in the Trinity, is the God of Christ, as Christ is man and Mediator; he chose and appointed him to be the Mediator, and made a covenant with him...

Albert Barnes Presbyterian @notesbybarnes

Continuation of Notes for Verse 1. Note 2 Verse at end of this note. (2.) The principal objection to the opinion that it was written to the church at Ephesus, is found in certain internal marks, and particularly in the want of any allusion to the fact that Paul had ever been there, or to anything that particularly related to the church there.