We spend our efforts trying to convince those around us of the existence of God, when we ought to be searching for effective ways to communicate our relationship to Him. This is only possible through relationship. We know that communication is more than words, and that’s why God’s design makes use of personal human interaction for the communication of the Good News.
The context of the gospel is -must be, personal relationships. God did not send the Word in the form of a tract or a circus-tent revival, because the means affects the message. God sent His son, Jesus, not to give the Good News, but to be the Good News. The essence of the message is not that people can go to heaven, or even that they can receive the free gift of forgiveness; it is that a relationship with God is possible through the person of Jesus. Our human relationships, though they are just shadowy reflections of the holy relationship, establish a framework for us to understand how God relates to us, His creatures. He is indeed a personal God, concerned with every aspect of our lives and actively involved in our personal histories. He knows us intimately, and He so desires that we would know Him, that He has provided the Way for it to be possible.
Though it doesn’t always make the most sense, God chooses to share His plan for redemption through people. Because they are selfish, disobedient, and proud, Humans really aren’t the most efficient or dependable media available. It would be easier for Him to reveal Himself through a massive international press conference, or through internet spam. But these impersonal means lack the key to effective communication of the gospel: relationship. Linguists have for centuries tried to translate certain abstract concepts from one culture into another that has no framework for understanding such a thought. Explaining the concept of patriotism to a person without a country, family to an orphan, or grace to a Mormon would all prove to be difficult- even impossible- apart from a personal interaction by which you could complete the definition through a demonstration of such things.
When Paul (Saul at the time) had an encounter with Jesus on the road to Damascus, Jesus sent him to meet Ananias and be discipled. Jesus did the convincing and saving, but did not separate it from the context of relationship. So we see that God uses human relationships in the salvation process, as an illustration of His relationship with us. Despite the great value our societies place on independence, and individualism, Human interconnectedness is a beautiful thing. Human relationships, even the natural ones, have built-in accountability, teaching, fellowship, service, and love.