"(Gesenius would here translate 'fire-hearth of God,' after Arab. arr; elsewhere in O.T. the same word occurs as a man's name, and appellation of Jerusalem, where it is taken as = 'lion of God.') Ariel in T. Heywood and Milton is the name of an angel, in Shakespeare of 'an Ayrie spirit'; in Astron. of one of the satellites of Uranus." [OED]
the lion of God. (1.) One of the chief men sent by Ezra to procure Levites for the sanctuary (Ezra 8:16). (2.) A symbolic name for Jerusalem (Isa. 29:1, 2, 7) as "victorious under God," and in Ezek. 43:15, 16, for the altar (marg., Heb. 'ariel) of burnt offerings, the secret of Israel's lion-like strength.