We should tell others about Jesus Christ. We should tell them the wonderful news of how He was born from a Virgin. And how He lived a sinless life. We should tell them how He was tried and convicted by a religious crowd for a crime that He didn't commit. He was then mocked and brutally beaten and then finally hung from a Tree and left to die. 3 days after He died and was buried in a tomb; He arose from the Dead and is now sitting at the Fathers right hand (God)
We should also warn anyone who will listen that no matter how good or bad they think they are that they need God's forgiveness. We should tell them that God loves You and that He wants You to Come to Him (Jesus Christ) and that if they will accept Jesus Christ as their Savior they can rest assured knowing that when they die they will enter into God's kingdom (Heaven) If they refuse to accept his Son's blood; then when they die they will enter into the Lake of Fire (Hell)