The Apostle Paul
Romans 1:4ESV·traditional attribution

and was declared to be the Son of God in power according to the Spirit of holiness by his resurrection from the dead, Jesus Christ our Lord,

John Calvin Reformed

4. Declared “Declaratus,” ὁρισθέντος. Some of the ancients, such as Origen, Chrysostom, Cyril, and others, have given to this verb the meaning of is “proved — δειχθέντος;” demonstrated — ἀποφανθέντος;” “exhibited — ἀποδειχθώντος;”etc. But it is said that the word has not this meaning in the New Testament, and that it means, limited, determined, decreed, constituted.

Matthew Henry Presbyterian

Paul titles himself a servant of Christ, his glory, not his shame. He was called to apostleship, not self-appointed like the false teachers. He was separated to the Gospel by God's counsel itself, set apart from birth to be entirely devoted to it, the Gospel of God Himself, divine in origin and extraction.

AI summary

Commenting on Romans 1:1-7

John Gill Reformed Baptist

And declared to be the Son of God,.... Not made as he is said to be before, when his incarnation is spoken of; nor did he begin to be the Son of God, when he was made of the seed of David, but he, the Son of God, who existed as such, from everlasting, was manifested in the flesh, or human nature: and this his...