{A beloved son} (huion agap(8874)on).  Lu 20:13  has 	on
huion ton agap(8874)on. Jesus evidently has in mind the language of
the Father to him at his baptism ( Mr 1:11  Mt 3:17  Lu 3:22 ).
{Last} (eschaton). Only in Mark. See on 烘t 21:37| for
discussion of "reverence."