Easton's Bible Dictionary (1897)
Married, is used in Isa. 62:4 metaphorically as the name of Judea: “Thy land shall be married,” i.e., favoured and blessed of the Lord.
Smith's Bible Dictionary (1863)
(married), the name which the land of Israel is to bear when “the land shall be married.” (Isaiah 62:4)
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
BEU'LAH (married), a word used by Isaiah, Isa 62:4, to set forth the intimate relation of the Jewish Church to God.
Hitchcock's Bible Names (1869)
married