12 Here καί (kai) has been translated as “then” to indicate the implied sequence of events within the narrative.
13 This cloud is the cloud of God’s presence and the voice is his as well.
14 Grk “And there came a cloud, surrounding them.”
15 Grk “my beloved Son,” or “my Son, the beloved [one].” The force of ἀγαπητός (agapētos) is often “pertaining to one who is the only one of his or her class, but at the same time is particularly loved and cherished” (L&N 58.53; cf. also 1).
16 The expression listen to him comes from Deut 18:15 and makes two points: 1) Jesus is a prophet like Moses, a leader-prophet, and 2) they have much yet to learn from him.

In other versions

And a cloud overshadowed them, and a voice came out of the cloud, “This is my beloved Son; listen to him.”

Then a cloud appeared and covered them, and a voice came from the cloud: “This is my Son, whom I love. Listen to him!”

A cloud appeared, overshadowing them, and a voice came from the cloud: “This is my beloved Son; listen to him!”

Then a cloud overshadowed them, and a voice from the cloud said, “This is my dearly loved Son. Listen to him.”

And a cloud came, overshadowing them, and a voice came from the cloud, “This is my beloved Son. Listen to him!”

And there was a cloud that overshadowed them: and a voice came out of the cloud, saying, This is my beloved Son: hear him.

Public Domain