yet - though heretofore lying in abject prostration.
My cities - not only Jerusalem, but the subordinate cities of Judah. God claims them all as peculiarly His, and therefore will restore them.
through prosperity ... spread abroad - or overflow; metaphor from an overflowing vessel or fountain (compare Pro 5:16) [Pembellus]. Abundance of fruits of the earth, corn and wine, and a large increase of citizens, are meant; also spiritual prosperity.
comfort Zion - (Isa 40:1, Isa 40:2; Isa 51:3).
choose - (Zec 2:12; Zec 3:2; Isa 14:1). Here meaning, “show by acts of loving-kindness that He has chosen.” His immutable choice from everlasting is the fountain whence flow all such particular acts of love.