A person who becomes a Christian moves from knowing about God from a distance, to knowing him directly and intimately. Jesus said:

“Now this is eternal life; that they may know you, the only true God, and Jesus Christ, whom you have sent.” John 17:3

As someone being transformed in every part of their lives by the Gospel of Jesus Christ, a Christian becomes the hands, the feet and voice of Jesus to those who are lost and without hope in this world. Paul said:

“We are ambassadors for Christ, God is making his appeal through us.” 2 Corinthians 5:20

"Christianity, if false, is of no importance, and if true, of infinite importance, the only thing it cannot be is moderately important." C.S. Lewis

--The Gospel produces the right approach to sharing our faith:

1. We are compelled to share the gospel out of generosity and love, not guilt.
2. We are freed from fear of being ridiculed or hurt by others, since we already have the favor of God by grace.
3. There is a humility in our dealings with others, because we know we are saved only by grace alone, not because of our superior insight or character.
4. We are hopeful about anyone, even the “hard cases”, because we were saved only because of grace, not because we were likely people to be Christians.
5. We are courteous and careful with people. We don’t have to push or coerce them, for it is only God’s grace that opens hearts, not our eloquence or persistence or even their openness.

All these traits not only create a winsome ambassador for Christ but an excellent neighbor in a multi-cultural society.

--Evangelistic truths that still apply in the 21st century:

1. The message is God’s and the means are people.
2. God can, has, and will use anybody who is willing to convey the gospel.
3. The messenger plays a role in the conversion process, but only the Holy Spirit graciously provides the gift of faith leading to repentance, belief and conversion.
4. A life transformed is a powerful witness to an unbeliever.
5. We cannot give away what we do not have. The messenger is a conduit of grace.
6. Obedience and a willingness to share the gospel is the key, training is always helpful but not required.
7. Effective evangelism always involves fervent prayer that God will bless our efforts.
8. Knowing, trusting and sharing God’s Word is central to evangelism.
9. Depending upon God means being willing and ready 24/7/365. Let Him decide who will come to faith.
10. The most effective communication of the gospel is simple and sincere.
11. Knowing someone’s need is the best beginning—let them tell their story, and listen well.
12. Don’t view the condition of the lost as a hindrance—the things that could destroy us make us ready for the gospel.

If we find ourselves with a desire that nothing in this world can satisfy, the most probable explanation is that we were made for another world." C.S. Lewis

--Questions to probe our hearts:

1. How far do you have to look in your world to find someone who is hurting? Who are they? What is the real source of their pain? Can you see any spiritual connection?
2. Do you truly believe that “the gospel is the power of God for the salvation of everyone who believes”? Romans 1:16
3. Do you believe that “his grace is sufficient for you”? 2 Corinthians 12:9
4. Why have 40 million people been martyred since the death of Christ? What do these martyrs’ examples say to those of us in different settings and under much less pressure and persecution?
5. Fear is always present in social situations where issues of faith could be discussed. What fears prevent you from sharing the gospel? Dig deeper—where do these come from?
6. What are the real reasons people are biased against Christianity? Have you encountered these in your family and in other relationships? What can overcome this prejudice?
7. Christianity does not offer a better system of redemption—it offers a redeemer. The ultimate payoff is that we become different. How are you different since coming to Christ? This is your story. Are you willing to tell it?

“But in your hearts set apart Christ as Lord. Always be prepared to give an answer to everyone who asks you to give the reason for the hope that you have. But do this with gentleness and respect, keeping a clear conscience, so that those who speak maliciously against your good behavior in Christ may be ashamed of their slander.” 1 Peter 3:15-16

Helpful sources:

The Centrality of the Gospel by Dr. Tim Keller
Evangelism That Works by George Barna
Mere Christianity by C.S. Lewis