Numbers 3:15

“Number the children of Levi, etc.] Who were left out of the general muster of the children of Israel, but now were to be numbered alone, and in a different manner, and for, a different purpose, the Lord having a special regard auto, them, and special service for them: after the house of their fathers, by their families; into which the tribe was divided; house seems to be put for “houses”, which were principal ones; and these were divided into families, which branched from them, and according to these, denominated from their fathers, and not their, mothers, were they to be numbered; for as the Jewish writers often say, a mother’s family is no family; wherefore, if a Levite woman married into…”

“From a month old - Because at that time the first - born, in whose stead the Levites came, were offered to God. And from that time the Levites were consecrated to God, and were, as soon as capable, instructed in their work. Elsewhere they are numbered from twenty - five years old, when they were entered as novices into part of their work, Num 8:24, and from thirty years old, when they were admitted to their whole office. Numbers 3:25”

“Num 3:22, Num 3:28, Num 3:34, Num 3:39, Num 3:40, Num 3:43, Num 18:15, Num 18:16, Num 26:62; Pro 8:17; Jer 2:2, Jer 31:3; Mar 10:14; Ti2 3:15 Numbers 3:16”