Matthew 3:17

Dialogue of Justin

For this devil, when [Jesus] went up from the river Jordan, at the time when the voice spake to Him, `Thou art my Son: this day have I begotten Thee, '[397]

Tertullian A Treatise on the Soul

really hear the Father's voice testifying of Himself;[124]

Tertullian Against Praxeas

-as, for instance, when He said, "This is my beloved Son, in whom I am well pleased; hear ye Him."[232]

Origen Against Celsus Book II

Accordingly, the voice from heaven which proclaimed Him to be the Son of God, in the words, "This is my beloved Son, in whom I am well pleased,"[195]

Pseudo-Gregory Thaumaturgus On the Trinity

And on the mount the Father spake, and said, "This is my beloved Son."[5]

Pseudo-Gregory Thaumaturgus Twelve Topics on the Faith

He became man and was born in Bethlehem, and was brought up in Nazareth, and advanced in age, and on completing the set number of years (appeared in public and) was baptized in the Jordan, and received this testimony from the Father, "This is my beloved Son,"[5]

Pseudo-Gregory Thaumaturgus Fourth Homily

ture the Father of the Only-begotten, He who alone knoweth perfectly Him whom He alone in passionless fashion begat, to correct the erroneous imaginations of the Jews, opened the gates of the heavens, and sent down the Holy Spirit in the form of a dove, lighting upon the head of Jesus, pointing out thereby the new Noah, yea the maker of Noah, and the good pilot of the nature which is in shipwreck. And He Himself calls with clear voice out of heaven, and says: "This is my beloved Son,"[22]

Archelaus Acts of the Disputation with the Heresiarch Manes

And whose, too, was that voice which was sent forth out of heaven, and which gave Him this testimony, "This is my beloved Son, in whom I am well pleased? "[611]

Archelaus Acts of the Disputation with the Heresiarch Manes

of Mary? For just as no other had the capacity sufficient for sustaining the burden of the Paraclete except only the disciples and the blessed Paul, so also no other was able to bear the Spirit who descended from heaven, and through whom that voice of the Father gave its testimony in these terms, "This is my beloved Son,"[636]

Alexander Epistles on the Arian Heresy

For to distinguish Him from those who are not properly sons, He said that He was His own Son. And in the Gospel we read: "This is My beloved Son, in whom I am well pleased."[21]

Lactantius Divine Institutes Book IV

of the purifying dew. Then a voice from heaven was heard: "Thou art my Son, to-day have I begotten Thee."[167]

Recognitions of Clement I

But after Aaron, who was a priest, another is taken out of the waters. I do not speak of Moses, but of Him who, in the waters of baptism, was called by God His Son.[47]

Origen Commentary on Matthew Book X

Precious, then, is a lamp to men in darkness, and there is need of a lamp until the sun rise; and precious also is the glory in the face of Moses, and of the prophets also, I think, and a beautiful sight, by which we are introduced so as to be able to see the glory of Christ, to which the Father bears witness, saying, "This is My beloved Son in whom I am well-pleased."[38]