The word gal carries multiple related meanings depending on context: (1) a rolling wave of the sea, (2) a heap of ruins or stones (often marking a destroyed city), and (3) a spring or surge of water. The root idea is something that rolls or surges — whether waves of the ocean, piled-up rubble, or a gushing spring. This word is used both literally and poetically throughout the Hebrew Scriptures.
The imagery of gal carries profound theological resonance. Waves represent both the power and the unpredictability of creation — only God commands the seas (Psalm 89:9; Job 38:8–11). Heaps of stones mark divine judgment (Micah 1:6; Jeremiah 51:37), transforming great cities into rubble as a testament to God's sovereignty over the nations. Springs and surges of water picture refreshment and life given by God (Isaiah 58:11). Together these images proclaim God's power over all forces — chaos, judgment, and renewal.