# General Information: This quotation is from the prophet Haggai in the Old Testament. # his voice shook the earth "when God spoke, the sound of his voice caused the earth to shake" # shook ... shake Use the word for what an earthquake does in moving the ground. This refers back to [Hebrews 12:18-21](./18.md) and what happened when the people saw the mountain where Moses received the law from God.