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What Does "Blessed Are the Poor in Spirit" Mean? (Matthew 5:3)
kost'-li-nes (timiotes, "preciousness," "an abundance of costly things"):
Found only in Revelation 18:19, "made rich by reason of her costliness."
Orr, James, M.A., D.D. General Editor. "Entry for 'COSTLINESS'". "International Standard Bible Encyclopedia". 1915.