Good representation can make a big difference. Consider, for example, legal representation. The difference between a good lawyer and a bad lawyer can mean the difference between incarceration and emancipation, between a criminal record and a clean record. Obviously, it’s important and beneficial to have experienced, passionate and well-equipped representation! 

And that’s exactly what God provides for his people: representation of the highest order in the highest court before the highest Authority. 

While the Noahic covenant laid the foundation (Genesis 9), the Abrahamic covenant predicted a location for a benediction-spreading population (Genesis 12–22), and the Mosaic covenant established a means of preservation for that population (Exodus 20–24), the Priestly covenant promises perpetual representation for God’s people in the presence of Almighty God.