The ancient custom of observing a birthday 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. (John Calvin on Herod’s birthday party in Matthew 14:1-12)

Not sure Hallmark would put this on a birthday card, especially Calvin’s second point about wasting so much time.