Commentaries:
Barnes' Notes
As well the small as the great - Compare I Chronicles 24:31. The lot was not applied indiscriminately to all the 24 courses, but was only used to settle which course of Asaph, which of Jeduthun, and which of Heman, should on each occasion be taken. Asaph was given the precedence over his brethren, and his four courses were assigned the first, and then each alternate place. Jeduthun took rank next, and received alternate places, first with Asaph, and then with Heman, until his courses were exhausted. After this, all the later places fell necessarily to Heman, whose courses continue without interruption from the 15th.
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