In those hours on the cross, Jesus would perform the greatest act in human history, accomplishing salvation through the atonement that only He as the God-man could offer (1 Peter 2:24). Part of God’s redemptive plan was for Jesus to be humiliated, a humiliation that involved the nakedness that David predicted in Psalm 22:18. The redemption alluded to was fulfilled in the redemption accomplished.
Good teachers teach in three parts: they tell you what they’re going to teach you, teach it to you, and then remind you what they just taught you (and why it’s important). These three views of a topic—forward looking, in the present, and backward—are critical for mastering any subject. The Bible, with God as master-teacher, does the same thing. The Old Testament tells what redemption will look like when it comes. The Gospels tell what God did through Jesus Christ to accomplish redemption. And in the rest of the New Testament, God details the intricacies of the redemption already accomplished and how He applies it to the church. In this way, the Bible tells of redemption alluded to, redemption accomplished, and redemption applied.
Consider how this schema plays out in Psalm 22:18, wherein David writes, “They divide my garments among them, and for my clothing they cast lots.” Here we have a redemption allusion. How do we know? First, we don’t have any biblical evidence of lot-casting enemies taking David’s clothing. This could be just an example of poetic metaphor employed by David to describe a particularly difficult situation he experienced.