The key beliefs in Christianity are prayer, which is asking God for help and giving thanks, Sabbath, a day of rest on Sunday, The Holy Trinity, the belief in the Father, Son, and Holy Spirit. Finally, there is the Declaration of Faith, salvation through atoning sacrifice (for the forgiveness of sins) of Jesus Christ (Son of God) who died for the sake of mankind sin and rose again three days later, making eternal life for all people. The sacraments for Christians are Baptism, which marks the Christian's entrance into the church, and Holy Communion, sharing bread and wine to remember Jesus' last supper. Christians worship in a church, and a steeple is the top of the roof usually with a cross on top of it. A pastor is a worship leader for Christianity. The holy book is the Bible. The Old Testament is before Jesus and the New Testament is during the life of and after Jesus. Christmas and Easter are the most important holidays for Christians. Christmas is a celebration of Jesus' birth and Easter is the day he rose from the dead. Two holy places are Bethlehem, the place of Jesus' birth, and the Church of the Holy Sepulchre is the site of his crucifixion. Abraham is a common figure in this religion because it was founded by him. Christians view God as the most important figure in Christianity, although Jesus is very important as well. God is the only god in this religion, which is called monotheism.