The meaning of Beulah in the Bible
(From International Standard Bible Encyclopedia)

bu'-la (be'ulah "married"): A name symbolically applied to Israel: "Thy land (shall be called) Beulah .... thy land shall be married. .... so shall thy sons marry thee" (Isaiah 62:4 f.). In this figure, frequently used since Hosea, the prophet wishes to express the future prosperity of Israel. The land once desolate shall again be populated.

See more on the meaning of Beulah in the Bible:
Beulah {Easton's Bible Dictionary}
Beulah {Hitchcock's Bible Name}

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