Zion: the hill in Jerusalem that God chose for himself, and by extension the city built around it, the people who belong to it, and the future promised to them
Zion starts small. It is the name of one fortified ridge on the southeast side of Jerusalem, above the only spring that could water a settlement there, and the Bible first uses it for the citadel David took from the people already living in the city. Once David brought the ark up to that ridge and Solomon built the temple on the higher ground just north of it, the name climbed the hill along with the worship: Zion became the mountain God had chosen to live on, and then a way of naming the whole city.
From there the name keeps widening, and each widening grows out of the one before it:
- the fortress becomes God's dwelling, because the ark was carried there
- the dwelling becomes a mountain the whole world has to answer to, because the God who lives there is king everywhere
- the mountain becomes a city the nations travel toward, because that kingship has to become visible somewhere
- and the city becomes a person, addressed and wept over, because a place that holds a people can be spoken to like one
That last step is the one English readers most often miss. In the prophets and all through Lamentations, Zion is a woman: a daughter under siege, a mother whose children are marched off, a wife who says God has forgotten her, a bride given a new name. About a sixth of this word's occurrences sit inside a two word phrase that older Bibles print as "daughter of Zion", which in the Hebrew is not a daughter belonging to Zion but Zion herself called Daughter.
Jerusalem (יְרוּשָׁלִַם) and Zion stand side by side constantly in the same poem, and the pairing is rarely flat repetition. Jerusalem is the working name of the city: its walls, its streets, its population, its politics. Zion is the loaded name, the one a writer reaches for when the point is that God chose this place. Isaiah 2:3 keeps them a hair apart on purpose: instruction goes out from Zion, and the word of the LORD from Jerusalem.
Nuances
Disputed
How to read the recurring two word phrase that joins the word for daughter to the name Zion (בַּת־צִיּוֹן): whether Zion is itself being titled Daughter, or a daughter belonging to Zion is meant.
- majorityThe two nouns stand in apposition, so the phrase means Daughter Zion: the city itself addressed as a daughter. Parallel constructions on other place names, בַּת בָּבֶל, בַּת מִצְרַיִם, בַּת צוֹר, are consistently appositional and never possessive.; F.W. Dobbs-Allsopp, "The Syntagma of bat Followed by a Geographical Name in the Hebrew Bible," CBQ 57 (1995): 451-70; J. Andrew Dearman, Horizons in Biblical Theology 31 (2009): 144-65
- minorityThe phrase designates a personified group within or belonging to Zion rather than the city itself, so the older genitive rendering preserves something the appositional reading loses.; Michael H. Floyd, "Welcome Back, Daughter of Zion!" CBQ 70 (2008): 484-504