By the way, most Christian rituals are actually unbiblical. The Romans bastardized Christianity. Personally I think it was a mistake to allow Christianity to be co-opted by Rome.
Christians used to meet in small groups in homes, study the scripture, and try to follow Jesus. The church was a very decentralized structure.
It was too hard to control so the Romans herded everyone into former temples and set up a hierarchy that they could influence. This is when it became easy to introduce all kinds of heresies.
The only rituals I can think of in the New Testament are baptism, the Lord’s Supper, and meeting together as a church.