John Gills Exposition of the Bible Commentary - Isaiah 29:1
Woe to Ariel, to Ariel, the city where David dwelt ,.... Many Jewish writers by "Ariel" understand the altar of burnt offerings; and so the Targum, "woe, altar, altar, which was built in the city where David dwelt;' and so it is called in Ezekiel 43:15 it signifies "the lion of God"; and the reason why it is so called, the Jews say F9 Yoma apud Jarchi in loc. , is, because the fire lay upon it in the form of a lion; but rather the reason is, because it devoured the sacrifices... read more
Matthew Henry's Complete Commentary - Isaiah 29:1-8
That it is Jerusalem which is here called Ariel is agreed, for that was the city where David dwelt; that part of it which was called Zion was in a particular manner the city of David, in which both the temple and the palace were. But why it is so called is very uncertain: probably the name and the reason were then well known. Cities, as well as persons, get surnames and nicknames. Ariel signifies the lion of God, or the strong lion: as the lion is king among beasts, so was Jerusalem among the... read more