Many churches throughout the world use a Bible reading schedule called a "lectionary." It's just a fancy word meaning "selected readings." Posts like this reflect on the readings for an upcoming Sunday or other Church holiday, as found in the historic one-year lectionary.
Peter's confession of Christ is recorded for us in Mark 8:30. Answering on behalf of the other disciples, he says that they believe Jesus is the Christ, not, like many others would say, a reincarnation of John the Baptist, Elijah, or an Old Testament prophet. Jesus is the Christ.
Mark's Gospel has been understood since the earliest times to be strongly influenced by the preaching of Peter, who had Mark as a companion. It's significant that Mark goes on immediately to refer to Jesus as "the Son of Man" in verse 31. Under the inspiration of the Holy Spirit, Mark is saying that Jesus is the one who represents Adam and all the human race. His role, then, which is a matter of necessity, is to suffer, be rejected, be killed, and rise on the third day. As a representative of you and of me, then, Jesus suffers, dies, and rises from the dead, just like Adam, as a representative of you and of me fell into sin, died, and remained dead.
The apostles understood that Jesus did all he did for them, for their benefit. This is extraordinary good news. Especially the part where he rises from the dead shows us that we will also rise from the dead to eternal life and blessedness with Jesus.
Knowing that Jesus is the Christ, then, rescues us from sin and death. It places us into God's kingdom as partakers of the resurrection. With Peter, we have no need for fear. We are persuaded that Jesus is no normal (or abnormal) prophet. He is the one who has taken our place and leads us to an eternal home.
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