1. Because of the Great Commission. When Jesus was about to be taken up to heaven, his last words were about the preaching of the gospel to the ends of the earth. If last words were important, we’d better take heed Jesus’ last words.
2. Because reaching the lost is important to God. If they matter to God, they should matter to me.
3. Because these people could go to hell if they die without Christ. I don’t mention this just for kicks. I say this with holy fear and trembling.
4. Because reaching the lost (technically, the redemption of fallen human beings) is the overall theme of the Bible. And if we do read our Bibles, this is something we could never ignore. We see snapshots of this when God looked for Adam and Eve in the Garden of Eden, when Daniel preached the sovereignty of God in the Babylonian palace, when Jonah ran away from his call to preach in Nineveh and when Paul scoured the major cities of the Roman Empire to preach Jesus.
5. Because this, in part, is a major reason why we are left on this earth (the other major reason is our sanctification, but that’s a totally different topic).
6. Because people who are truly saved couldn’t just keep talking about what they found in Jesus. We share the good news, not because we have to but because we just can’t help it.
7. Because it is the least I could do. My salvation is freely given to me by grace and there is nothing I could do to repay it.That, for me, is overwhelmingly good. And like a scavenger who found a mansion full of food, the least I could do is go out into the streets and tell other beggars about what I found.