What does Psalm 15:3 mean?
David describes the Lord's guest (Psalm 15:1) as a person of integrity and peace. He doesn't slander others, nor does he harm his neighbor. Furthermore, he does not lie about his neighbor.Believers today ought to avoid using language that harms others. They show by their speech that they are followers of Jesus, who is the truth (John 14:6). They speak the truth in love (Ephesians 4:15) and display the fruit of the Spirit: "love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, self-control" (Galatians 5:22–23). This also includes avoiding slander: unkind or untrue words that harm another person's reputation.
The wicked person poisons society by slander, but the person who reflects God's nature uses speech that is gracious and seasoned with salt (Colossians 4:6). The wicked person is like the robbers who assaulted the man who was traveling from Jerusalem to Jericho. The righteous man is like the Good Samaritan who ministered to the wounded traveler (Luke 10:25–37). He shows compassionate love and care for his neighbor.