Jesus' baptism is commemorated in the Eastern Orthodox churches at the Feast of Theophany (literally "manifestation of God") on January 6 (for those Orthodox Christians who use the Julian Calendar, January 6 falls on the Gregorian Calendar date of January 19).
In the following weeks, the priest typically visits the homes of the members of the parish and leads prayers of blessing for their families, homes (and even pets), sprinkling them with holy water.