First off, talking baby. I never pictured Merlin young. I just had this image of him as old and powerful. So when the story highlights his youth and his flaunting demeanor it struck me. Another element of Merlin's humanity is that he ages.
I found it also quite interesting that God gives Merlin these powers because as the it says in the text "he gave this ability to the child, whose need was greater." Merlin was influenced by demonic powers. So the best way to cancel that while still givin Merlin free will is giving him good powers and letting him choose. I want to highlight the part about Merlin's need is greater. He obviously needed to be blessed by God and given such holy powers or else we might have had an antichrist roaming around. The thing that I find so interesting, is all the Mystics we have read that received their visions; they were in great need too. And so God gave them visions. Maybe Merlin was one of the first Mystics in a way
Lastly, I want to talk about how religious or how much Merlin refers to God, Jesus and the last supper. I never thought of merlin this way. He is a magician, a sorcerer, a master of the magical arts. He poofed the stone heads to where they are now (just one of many origin stories about this lol). But a man of God. Never would have pictured that. Even from the beginning my thoughts don't jump to the conclusion that God gave Merlin these powers. I just thought he was magic, one of the first know beings of magic. This is what I think anyway.
Now there is his death which I won't get into since it frustrated me. But he died in a very human way which was sad, but he was powerful so as Merlin says man should not fear death and nothing does not come that does not end,