[98] On this account I think it is, that God ordered to be consecrated the whole of the first-born, the tenth, I mean the tribe of Levi, taking them in exchange for the first-born, for the preservation and protection of holiness, and piety, and sacred ministrations, which all have reference to the honour of God. For the first and best thing in ourselves is our reason, and it is very proper to offer up the first-fruits of our cleverness, and acuteness, and comprehension, and prudence, and of all our other faculties which we have in connection with our reason as first-fruits to God, who has bestowed upon us this great abundance of power of exerting our intelligence.