The Lion of Judah was a symbol used by the Israelite Tribe of Judah.
The “Lion of Judah” is another name for the Lord in the bible. 
It’s not a religion but a name for God found in the Christian Scriptures.
The lion of Judah refers to Jesus when he comes back for the end times. 
  
Revelation 22:13 
“I am the Alpha and the Omega, the First and the Last, the Beginning and the End.” 

God is glorified in all of His creation. He is over all, and in all.