AthanasiusOn St Peter’s words in Acts 2:36:

“Therefore let all the house of Israel know assuredly, that God hath made the same Jesus, whom ye have crucified, both Lord and Christ”.

The Son of God, being Himself the Word, is Lord of all.

We became subject from the first to the slavery of corruption and the curse of the Law.

Then, by degrees fashioning for ourselves things that were not, we served, as says the blessed Apostle, ‘them which by nature are no Gods’  (Gal. 4:8).

Ignorant of the true God, we preferred things that were not to the truth.

The ancient people when oppressed in Egypt groaned.

So also, we too had the Law ‘engrafted’  (James 1:21) in us, and according to the unutterable sighings (Rom. 8:26) of the Spirit made our intercession, ‘O Lord our God, take possession of us’ (Is. 26:13, LXX).

Then, as ‘He became for a house of refuge’ and a ‘God and defence,’ so also He became our Lord.

Nor did He then begin to be, but we began to have Him for our Lord.

God, being good and Father of the Lord, full of pity, and desiring to be known by all, makes His own Son put on Him a human body and become man, and be called Jesus.

This was so that, offering Himself in this body for all, He might deliver all from false worship and corruption, and might Himself in this way become Lord and King of all.

This it is what Peter means when he says ‘He has made Him Lord,’ and ‘has sent Christ.’

Peter is saying that, in making Him man (for to be made belongs to man), the Father did not simply make Him man.

Rather, He has made Him with a view to His being Lord of all men, and to His hallowing all through the Anointing.

For though the Word existing in the form of God took a servant’s form, yet the assumption of the flesh did not make a servant of the Word, who was by nature Lord.

It was  the emancipation of all humanity which takes place by the Word.

And by this assumption that very Word who was by nature Lord, and who was then made man, has by means of a servant’s form been made Lord of all and Christ in order to hallow all by the Spirit.

[…] Christ, being by nature Lord and King everlasting, does not become Lord more than He was at the time He is sent forth.

He does not then begin to be Lord and King, but what He is ever, that He then is made according to the flesh.

And, having redeemed all, He becomes thereby again Lord of quick and dead.

Athanasius of Alexandria (c.293-373): Against the Arians, 2, 15, 14 (adapted).