In the poem, the Lord marches from his home in the mountains of Edom (compare Habakkuk 3:3) or Mount Sinai. One tradition places Sinai east of the Jordan Valley, in Edom (compare Galatians 4:25). The fire and earthquake that terrified Israel during the giving of the law (see Exodus 19:18) symbolize God's power and anger on the battlefield against his enemies.
Torrential rain would have turned the ground into mud, making Sisera’s chariots a problem instead of an advantage (see Judges 4:15–16).