A culture of celebration
It’s strange that a culture of celebration is intrinsic to Judaism but almost unknown in Christianity. Christians don’t have yom-tovs.
In a work called “Theology of Play”, Christian Reformed theologian Jürgen Moltmann says it is because Christianity inclines to asceticism.
There is a highly regrettable and unhistorical Christian antagonism to the Pharisees, but the truth about the Pharisees is that they had ten words for joy and stood for the simchah shel mitzvah that gave every Jewish family the yom-tov joy that brought God into the humblest house and family.