CC Ādi 14.20
brāhmaṇa-brāhmaṇī āni’ mahotsava kaila
After hearing Nīlāmbara Cakravartī’s prediction, Śacīmātā and Jagannātha Miśra observed the name-giving festival in great joy, inviting all the brāhmaṇas and their wives.
It is the Vedic system to observe all kinds of festivals, including birthday festivals, marriage festivals, name-giving festivals and festivals marking the beginning of education, by especially inviting brāhmaṇas. In every festival the brāhmaṇas are to be fed first, and when the brāhmaṇas are pleased they bless the festival by chanting Vedic mantras or the Hare Kṛṣṇa mahā-mantra.