Word and worship belong indissolubly to each other. All worship is an intelligent and loving response to the revelation of God, because it is the adoration of His name. Therefore, acceptable worship is impossible without preaching. For preaching is making known the name of the Lord, and worship is praising the name of the Lord made known.
John StottThe concept of substitution lies at the heart of both sin and salvation. For the essence of sin is man substituting himself for God, while the essence of salvation is God substituting himself for man.
John Stott