As Christianity is quite diverse and there may be several answers, IMHO, then I would say what Peter said in Acts 2:38, "Repent and be baptized, every one of you, in the name of Jesus Christ for the forgiveness of your sins. And you will receive the gift of the Holy Spirit."
because it shows you love god and the Holy family It is the basic entry requirement for Christianity. You cannot be a proper Christian without being baptised.
Baptism
Yes it is
No. There is no Jewish ritual involving the ear.
They needed to be baptized.
Circumcision is not a part of Christian tradition.
Christian Eberhart has written: 'Ritual and metaphor' -- subject(s): Early Christian literature, Congresses, Sacrifice in the Bible, History and criticism
Catholicism and Sacred ritual to god, and Christianity was mandated.
An antiphon is a short chant in Christian ritual, sung as a refrain. Antiphons are Psalm-texted.
AnswerNo. communion is offered in some denominations to those who are already Christians.Essentially, becoming a Christian occurs when a person believes in the message of Christianity, just as a person ceases to be a Christian if that belief is no longer there. Baptism is a ritual symbolic of having become a Christian.Communion is a ritual that commemorates the suffering and death of Christ in order to redeem mankind. Your decision to believe in and follow Christ precedes this commemoration or you would not be acknowledging its importance.
The sacraments that you are referring to are Christian elements. Given the nature of the celebration, Jewish people do not do this. This is a peculiarly Christian thing and is not found in Judaism.
a sacrament is basically a ritual of the Christian faith, this may include the breaking of bread at Communion.