'Flames' in the Bible

He will come in flames of fire to take vengeance on those who have no knowledge of God, and do not obey the Good News as to Jesus, our Lord.

In the same way the tongue is an insignificant part of the body, but it is immensely boastful. Remember how a mere spark may set a vast forest in flames.

others you must try to save, as brands plucked from the flames; and on others look with pity mingled with fear, while you hate every trace of their sin.