When you pass through the waters, I will be with you; and through the rivers, they shall not overflow you: when you walk through the fire, you shall not be burned; neither shall the flame scorch you.
All Commentaries on Isaiah 43:2 Go To Isaiah 43
Caesarius of Arles
AD 542
If you watch and seek, the Lord says, “Here I am,” and “If you pass through fire,” I am with you “and the flames shall not consume you.” If you ask through prayer, you will find, and if you knock through giving to the poor, Christ opens the doors to you in order that you may enter and possess paradise. Now if you still think that anything will remain at the end of the world, consider your own end.