{Concerning his Son} (peri tou huiou autou). Just as Jesus
found himself in the O.T. ( Lu 24:27,46 ). The deity of Christ
here stated. {According to the flesh} (kata sarka). His real
humanity alongside of his real deity. For the descent from David
see  Mt 1:1,6,20  Lu 1:27  Joh 7:42  Ac 13:23 , etc.