What does the Bible say about Christ in the Old Testament?

The Old Testament is rich with types and shadows that foreshadow the coming of Christ. As noted in Luke 24:27, Jesus himself explained to his disciples that the Scriptures testify about him, beginning with Moses and the Prophets. This indicates that every narrative, law, and prophecy in the Old Testament has significance in understanding who Christ is and why he came. For instance, the sacrifices showcased the need for atonement and prefigured Christ's ultimate sacrifice for sinners, while books like Esther reflect God's providential work in preserving his people for the Messiah's coming.