For indeed, the descendants of Levi, who are appointed to the priesthood, are commanded by the law of Moses to collect a tenth [of the income] of the Israelites, who are their brothers, even though these brothers are [also] descendants of Abraham.

For the law of Moses appoints [morally] weak men to be head priests, but the message of [God's] oath, which came after that law [Note: The quotation from Psa. 110:4 (See verse 21) was written after the law of Moses was given] appointed the Son, who was made perfect [in every way] forever.