In Handel’s work, the “child” is Jesus. Put that aside, also.
Would the music inspire, uplift, or satisfy if Handel had inserted your name in “For unto Us a Child Is Born”? I think so.
You were “born unto us.” The world changed on the day of your appearance. For 13.8 billion years the universe had no you. Then, in a paroxysm of pain, you entered the world with the opportunity to change it, to reduce the pain, to uplift, inspire, and satisfy. You were born unto us. I rejoice in your being here; without you the universe would be a different place and have a different destiny.
* https://www.youtube.com/watch?v=MS3vpAWW2Zc