How did sinners approach God before the cross compared to after it?
Before the cross, sinners approached God on the basis of animal blood. On this side of the cross, they approach God on the basis of Christ's blood. The Gospels record the time before Christ was crucified and contain no shed blood of Christ, since it had not yet happened.
Les teaches that before Christ died, sinners approached God on the basis of animal blood, but on this side of the cross, we approach God on the basis of Christ's blood. He agrees with the note writer who said the Gospels really belong to the Old Testament because everything in the Gospels is before Christ is crucified. There is nothing in the four Gospels about the shed blood of Christ; it could not be, because it had not happened yet. Paul, by contrast, knows Christ crucified.