Exodus 30:14

“Every one that passeth among them that are numbered, from twenty years old and above, etc.] Even Levites, Israelites, proselytes, and servants freed, but not women, bond servants, or children f888: shall give an offering to the Lord; the half shekel before mentioned.”

“The Ransom of Souls. - Exodus 38:25-28. On comparing these words with those of Numbers 1:1-3, we may perhaps infer that the first passage relates to a mere counting of the adult Israelites at the time when the money was taken from each, and that what the latter passage enjoins was a formal enrolment of them according to their genealogies and their order of military service. A ransom for his soul - What the sincere worshipper thus paid was at once the fruit and the sign of his faith in the goodness of Yahweh, who had redeemed him and brought him into the covenant. Hence, the payment is rightly called a ransom inasmuch as it involved a personal appropriation of the fact of his redemption. On…”

“from twenty: Num 1:3, Num 1:18, Num 1:20, Num 14:29, Num 26:2, Num 32:11 Exodus 30:15”