Bottem line is that The words of Jesus are the Gospel,
Jesus brought in Gods new covenant which was told of by Jerimiah.
That changed many things.
The tithing system for instance, stoped with the destruction of Israel, it was brought back by the gentile Church but had nothing to do with the state of Israel.
Kings and priests are foretold in rev but that does not make void what Jesus said.
All other scripture can be adjusted for the sake of religion but the words of Jesus are not religion but they are what we live and die by.