greenbaggins
Puritan Board Doctor
Calvin has some interesting thoughts on birthdays in his commentary on the synoptic Gospels, volume 2, page 225:
The ancient custom of observing a birth-day every year as an occasion of joy cannot in itself be disapproved; for that day, as often as it returns, reminds each of us to give thanks to God, who brought us into this world, and has permitted us, in his kindness, to spend many years in it; next, to bring to our recollection how improperly and uselessly the time which God granted to us has been permitted to pass away; and, lastly, that we ought to commit ourselves to the protection of the same God for the remainder of our life.