The Son of the Most High (huios Hupsistou). There is no article in the Greek, but the use of Most High in Luk 1:35 clearly of God as here. In Luk 6:35 we find “sons of the Most High” (huioi Hupsistou) so that we cannot insist on deity here, though that is possible. The language of 2Sa 7:14; Isa 9:7 is combined here.