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

And a voice came out of the cloud, saying, This is my Son, my chosen: hear ye him.

and a voice came out of the cloud saying, 'This is My Son, the Beloved; hear ye him;'

Then there came a voice from within the cloud: "This is My Son, My Chosen One: listen to Him."

And there was a voice from the cloud saying, This is my Son, the man of my selection; give ear to him.

and from the cloud came a voice which said – "This is my Son, the Chosen One; him you must hear."

This is my beloved Son - Instead of ὁ αγαπητος, the beloved one, some MSS. and versions have εκλεκτος, the chosen one: and the Ethiopic translator, as in several other cases, to be sure of the true reading, retains both.
In whom I am well pleased, or have delighted - is added by some very ancient MSS. Perhaps this addition is taken from Matthew 17:5.

And there came, a voice out of the cloud,.... See Gill on Matthew 17:5.

my beloved Son . . . hear him--reverentially, implicitly, alone.