Pseudo-Augustine
Catena Aurea · Matthäusevangelium 3
And lo a voice from heaven, saying, This is my beloved Son, in whom I am well pleased.
(Fulgent. de Fide ad Petrum. c. 9.) Though Father, Son, and Holy Ghost are one nature, yet do thou hold most firmly that They be Three Persons; that it is the Father alone who said, This is my beloved Son; the Son alone over whom that voice of the Father was heard; and the Holy Ghost alone who in the likeness of a dove descended on Christ at His baptism.