* Eucharist: The earliest Christians celebrated the Eucharist, or Lord's Supper, as a way of remembering Jesus' death and resurrection. This was typically done on Sundays, and it involved the sharing of bread and wine.
* Baptism: Baptism was another important sacrament for early Christians. It was seen as a way of washing away sins and entering into a new life in Christ.
* Prayer: Prayer was an essential part of Christian worship from the very beginning. Christians prayed to God individually, as well as in groups.
* Singing: Singing was also a common form of worship in the early church. Christians sang hymns and other songs of praise to God.
* Preaching: Preaching was another important part of Christian worship. Early Christians preached about Jesus' life and teachings, and they encouraged their listeners to follow Him.
* Fellowship: Fellowship with other believers was also an important aspect of Christian worship. Early Christians met together regularly to pray, worship, and share meals.
These are just some of the ways that Christians worshipped in the 1st century. As the church grew and spread throughout the world, new forms of worship developed and emerged. However, the core elements of Christian worship have remained the same: the Eucharist, baptism, prayer, singing, preaching, and fellowship.