what does the bible say?
In Jesus' longest sermon, the Sermon on the Mount, He identifies believers as "the salt of the earth" and "the light of the world" (Matthew 5:13, 14). Believers are to have a visible and transformative influence on the people around them. This calling did not begin in the New Testament, as God had long intended His people to be a light to the nations, reflecting His character so others would turn to Him (Isaiah 42:6; 49:6). Examples such as Ruth and Rahab demonstrate how faithful witness can lead others to abandon false gods and place their faith in the Lord (Ruth 1:16–17; Joshua 2:9–11). Like salt preserves food and enhances its flavor, Christians are called to preserve what is good and bring a positive, Christ-centered influence into a sinful world (Matthew 5:13). Like light dispels darkness, believers are to shine the truth of God through both their words and their actions (Matthew 5:14–16). Paul echoed this theme by urging Christians to "shine as lights in the world" and to walk as "children of light" in the midst of a dark and fallen culture (Philippians 2:15; Ephesians 5:8–11). May we live as salt and light so others see Christ in us and are drawn to know and follow Jesus too (Matthew 5:16).