... it was the duty of parents to "present" their child in the Temple, the equivalent of a Church christening today.
The time came for Joseph and Mary to perform the ceremony of purification, as the Law of Moses commanded. So they took the child to Jerusalem to present him to the Lord, as it is written in the law of the Lord: “Every first-born male is to be dedicated to the Lord."
But some old bloke butted in:-
Simeon took the child in his arms and gave thanks to God: “Now, Lord, you have kept your promise, and you may let your servant go in peace. With my own eyes I have seen your salvation, which you have prepared in the presence of all peoples."
He recognised a much more profound purpose in the first Christmas than just pretty story. Jesus taught us to be nice to one another? Jesus taught us to give to the poor? Jesus told uplifting moral anecdotes?
All true; but only a half truth. Jesus came to redeem the people. Wonder what, on earth, that means?