Numbers 3:2-4

Let the Reader not lose sight of the intention, which probably the HOLY GHOST had in view, in causing the sin of Aaron's two eldest sons to be again mentioned. The church of GOD is a sacred inclosure out of the world's wilderness. Let no man rush into it with strange tire, and sparks of his own kindling. Remember Nadab and Abihu! Leviticus 10:2. My soul! though thou seekest the acceptance, both of thy person and thy offering, only in the blood and righteousness of JESUS, take heed how thou venturest into the divine presence, in a careless, unconcerned and indifferent frame of mind! See Leviticus 10:3.