Luke 3:9, 17

Even now the axe [of God’s judgment] is swinging toward the root of the trees; so every tree that does not produce good fruit is being cut down and thrown into the fire.”

His winnowing fork is in His hand to thoroughly clear His threshing floor, and to gather the wheat (believers) into His barn (kingdom); but He will burn up the chaff (the unrepentant) with unquenchable fire.”