A voice from heaven] The voice of God the Father, as appears by the words following, consecrating and authorizing Christ to be our Mediatour, and to go about the work of our redemption. Here is also a demonstration of the Trinitie: the Father speaks from heaven, the Son comes out of the water, the holy Ghost appears in the likenesse of a dove.
This is] He speaks of Christ, but to the people. He, on whom the dove sits, is.
my beloved Son] My naturall Son, by eternall generation, and therefore dearest to me.
in whom I am well pleased] My judgement is satisfied, and my affection setled upon him, and, in him, upon all believers, who were the children of wrath before, Ephesians 2:3.