The book of Ezekiel is the story of two cities - the old Jerusalem which was doomed to destruction; the new Jerusalem which is forever.
Ezekiel saw the river of life flowing from the presence of God, growing deeper as it went. The river of life flows still into the world, and will flow on for ever.
Believers are called to a life of constant worship. But according to Ezekiel, there are particular times when worship is particularly appropriate.
Old Testament Israelites offered sacrifices appropriate for each of their different festivals. Do New Testament believers observe festivals? And if so, what are the sacrifices we offer?
Christ is the head of the church, the Lord of the temple. He rules it with justice; he presents our sacrifices to God.