the Our Father
Prayer.
The Shema prayer.
lt depends upon the tradition of the church. Nothing in scripture says that it is 'wrong' to kneel for prayer, stand for prayer or sit for prayer. What is important is that you come to prayer in the right frame of mind. When I was brought up, in the church I attended the tradition was that we knelt for prayer. In my own church we sit for prayer, as most find this posture more comfortable so that one can concentrate on the prayer and not on ones creaky joints! When we spent some time in Norway in 2006, we wennt to a church where they sat for the hymns and always stood for the prayers. Traditionally during confessional prayers one knelt as this posture was accepted as more contrite -- but again, one can still kneel in a contrite position and not be partiularly contrite in one's heart. So it is the attitude to prayer that is important - not whether you sit, stand or kneel. If your church prefers one to the other then join in with the tradition. Otherwise do whatever you feel most comfortable.
Most likely either Ignatius of Antioch of John Chrysostom.
It depends on the church denomination. Some churches have parishioners sit or kneel. But the most important act is reverent respect and prayer between you and God, you and Jesus Christ.
the archbishop of Canterbury
Various Psalms are traditionally recited as well as the "Memorial Prayer", but the most important prayer is the Kaddish.
The Church
The churchThe black church
The most simple and yet, the most advanced of the prayers in the Orthodox Church is consider to be The Jesus Prayer: Lord Jesus Christ, Son of God, have mercy on me, a sinner.
Wednesday evening church meetings have been a tradition in U.S. Baptist Churches for over a century. Originally called 'Prayer Meetings,' they have come to be both prayer time and Bible Study time meetings in most Baptist Churches today.
The churchThe black church