Arcana Coelestia # 10088
10088. 'Of the ram of fillings [of the hand], which is Aaron's' means a representative sign of the Lord's Divine power in the heavens which comes through Divine Truth emanating from His Divine Good, and the transmission and the reception of that truth there, as above in 10076.
Matthew 16:18-19
18
I also tell you that you are Peter, and on this rock I will build my assembly, and the gates of Hades will not prevail against it.
19
I will give to you the keys of the Kingdom of Heaven, and whatever you bind on earth will have been bound in Heaven; and whatever you release on earth will have been released in Heaven."