Seek the LORD, and ye shall live; lest he break out like fire in the house of Joseph, and devour it, and there be none to quench it in Bethel.
Seek the Lord ... lest he break out like fire - bursting through everything in His way. God is "a consuming fire" (Deuteronomy 4:24; Isaiah 10:17; Lamentations 2:3, "He burned against Jacob like a flaming fire which devoureth round about").
In the house of Joseph - the kingdom of Israel, of which the tribe of Ephraim, Joseph's son, was the chief tribe (cf. Ezekiel 37:16).
None to quench it in Beth-el - i:e., none in Bethel to quench it; none of the Bethel idols, on which Israel so depended, able to remove the divine judgments. Or, better, 'and there be none to quench it for Bethel.'