Smith's Bible Dictionary
Kal'la-i. (swift servant of Jehovah). A priest, in the days of Joiakim, the son of Jeshua. He represented the family of Sallai. Nehemiah 12:20. (B.C. after 536).
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Smith, William, Dr. Entry for 'Kallai'. Smith's Bible Dictionary. https://www.studylight.org/dictionaries/eng/sbd/k/kallai.html. 1901.