We are familiar with presentations that are completely Christ-free except for the fact that the content might bring us to the Christ Event.
The theory that God has encoded the way of life for the world in the Tabernacle is a fascinating half truth. Up to the preaching of John the Baptist followers of divine revelation had only glimpses of the great hope of the race. The OT makes a person wise to salvation without delivering its benefits, unless we can show that something other than faith is responsible for saving ancient individuals. Two witnesses, David and Abraham convince us otherwise.
Concealed
The OT is either contemporary instruction or prediction, and we know that God kept the mystery of divinity – mystery of godliness – concealed until the Lord Jesus Christ himself began to publish it. It is sheer fantasy and fable to intimate that the gospel was preached to the Israelites in antiquity.
How shall we escape, if we neglect so great salvation; which at the first began to be spoken by the Lord, and was confirmed unto us by them that heard him; Hebrews 2:3
Matthew 13:13-17
This is why I speak to them in parables, because seeing they do not see, and hearing they do not hear, nor do they understand. Indeed, in their case the prophecy of Isaiah is fulfilled that says: You will indeed hear but never understand, and you will indeed see but never perceive. For this people’s heart has grown dull, and with their ears they can barely hear, and their eyes they have closed, lest they should see with their eyes and hear with their ears and understand with their heart and turn, and I would heal them. But blessed are your eyes, for they see, and your ears, for they hear. For truly, I say to you, many prophets and righteous people longed to see what you see, and did not see it, and to hear what you hear, and did not hear it.