“Keep still Jesus Christ in your eye, in the perusal of the Scriptures, as the end, scope and substance thereof: what are the whole Scriptures, but as it were the spiritual swaddling clothes of the holy child Jesus?”  So wrote Isaac Andrews many years ago.  He goes on to outline various ways in which Christ is the key-note of all Scripture:-

1. Christ is the truth and substance of all the types and shadows.
2. Christ is the substance and matter of the Covenant of Grace, and all administrations thereof; under the Old Testament Christ is veiled, under the New Covenant revealed.
3. Christ is the centre and meeting place of all the promises for in him the promises of God are yea and Amen.
4. Christ is the thing signified, sealed and exhibited in the Sacraments of the Old and New Testament.
5. Scripture genealogies are to discover to us the times and seasons of Christ.
6. Scripture-laws are our schoolmasters to bring us to Christ, the moral by correcting, the ceremonial by directing.
7. Scripture-gospel is Christ’s light, whereby we are drawn into sweet union and communion with him; yea it is the very power of God unto salvation unto all them that believe in Christ Jesus; and therefore think of Christ as the very substance, marrow, soul and scope of the whole Scriptures.

Isaac Ambrose, quoted by J.I. Packer, Among God’s Giants, 135f.