In the version that we heard, Kenny Rogers is asking if she knew that the child she was carrying would do many wondrous things.
He asks if she knows that he will 'one day walk on water', 'save our sons and daughters', 'give sight to a blind man', 'calm a storm with his hand', and 'one day rule the nations' among other miraculous actions.
It is a legitimate question to consider: what did Mary know about her child, and when did she know it?
We know from Matthew's Gospel that Mary was visited by the angel Gabriel and given certain information.
First, she was told that her child would be a boy, and that she should name him 'Jesus'. She is told by Gabriel that the child will be 'great' and will be 'called Son of the most High'.
But then Gabriel goes further, saying 'the Lord God shall give unto him the throne of David his father; and he shall reign in the house of Jacob forever. And of his kingdom there shall be no end.'
What Gabriel is telling Mary is that her child shall be the long awaited Messiah.
