Reefs are large rocks that are very close to the surface of water in the sea. Because sailors cannot see them, they are very dangerous. Ships can easily be destroyed if they hit these rocks. (See: [[rc://en/ta/man/translate/figs-metaphor]])
Like trees that have been completely pulled out of the ground by their roots, the ungodly people have been separated from God, who is the source of life. (See: [[rc://en/ta/man/translate/figs-metaphor]])