Over against — Answerable for number and order to those of the priests, so that there should be a course of the Levites for each course of the priests.
Related Commentaries of 1 Chronicles 24:31
1 Chronicles 24:31
31 These likewise cast lots over against their brethren the sons of Aaron in the presence of David the king, and Zadok, and Ahimelech, and the chief of the fathers of the priests and Levites, even the principal fathers over against their younger brethren.