Against their own souls, i.e. their own lives; who were the authors of their own death and destruction. Compare 1Ki_2:23Pro_20:2. This he saith for the vindication of God’s justice and his own ministry in this severe dispensation.
The altar, to wit, of burnt-offerings, which was made of wood, but covered with brass before this time, Exo_27:1,2, to which this other covering was added for further ornament and security against the fire, which was continually burning upon it.
A sign; a monument or warning to all strangers to take heed of invading the priesthood, as it follows, Num_16:40.