Preaching Christ from the 10 Commandments

John Frame suggests the following ways that the law bears witness to Christ:

(1) The Decalogue presents the righteousness of Christ. He perfectly obeyed these laws, is a perfect example and the spotless sacrifice for sins.

(2) The Decalogue shows our need for Christ by convicting us as lawbreakers in need of a Saviour.

(3) The Decalogue shows the righteousness we have in Christ.

(4) The Decalogue shows us how God wants us to give thanks for Christ. We keep the commandments out of gratitude as God's people redeemed by grace.

(5) Christ is the substance of the law.
(i) we worship Jesus as the True and Living God
(ii) Jesus is the perfect image of God through whom we know and worship God (Col. 1:15; Heb. 1:3)
(iii) Jesus is the name of God to whom we bow (Phil. 2:10-11; cf. Isa. 45:23)
(iv) Jesus is our Sabbath rest (Luke 10:38-42), the Lord of the Sabbath (Matt. 12:8) who makes the Sabbath his own (Rev. 1:10)
(v) We honour the Father as we honour the Son who restores us to the family of God
(vi) Jesus is our life (John 10:10; 14:6; Gal. 2:20; Col 3:4), the Lord of life (Acts 3:15), who gave his life that we might live (Mark 10:45)
(vii) Jesus is our bridegroom who gave himself for his bride (Eph. 5:22-33)
(viii) Jesus is the source of our inheritance (Eph 1:11) whom we trust to provide all we need
(ix) Jesus is God's truth (John 1:17) in whom all the promises of God are Yes and Amen (2 Cor. 1:20)
(x) Jesus is sufficient for all our needs (2 Cor. 3:5; 12:9)

Adadpted from The Doctrine of the Christian Life pp400-401.