Grace be unto you, and peace, from God our Father, and from the Lord Jesus Christ.
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Ambrosiaster
AD 400
Paul teaches that Christ should be invoked in prayer but all grace comes from the Father. The two are one in their divinity, but primacy belongs to the authority of the Father. Commentary on Paul’s Epistles.
If our peace comes from God’s grace, why are you so proud, since you are saved by grace? How can anyone find grace with God, except through humility? Homilies on the Epistles of Paul to the Corinthians
Which the apostle prescribes for those to whom he writes, but "grace and peace.".
Now, when he announces these blessings as "from God the Father and the Lord Jesus"