Fuel
In Isaiah 9:5, 19, this signifies cessation of the falsification of the letter of the Word. (Apocalypse Explained 329[25])
In Ezekiel 15:4, 6; 21:32, this signifies the self-destruction of people who, from fallacies, reason against the goods and truths of the church. (Apocalypse Explained 504)
Gathered together, waters
In Exodus 15:8, this signifies falsities gathered together. Waters normally signify truths, but in this case, where they were blocking the escape of the Children of Israel from slavery and signify the opposite: falsities.
(参考: Arcana Coelestia 8286)