II. The danger they are threatened with, which they are concerned to avoid. Repent and reform, lest my fury come forth like fire, which it is now ready to do, as that fire which came forth from the Lord and consumed the sacrifices, and which was always kept burning upon the altar and none might quench it; such is God's wrath against impenitent sinners, because of the evil of their doings. Note, 1. That which is to be dreaded by us more than any thing else is the wrath of God; for that is the spring and bitterness of all present miseries and will be the quintessence and perfection of everlasting misery. 2. It is the evil of our doings that kindles the fire of God's wrath against us. 3. The consideration of the imminent danger we are in of falling and perishing under this wrath should awaken us with all possible care to sanctify ourselves to God's glory and to see to it that we be sanctified by his grace.