God has a kingdom. Jesus came to herald the coming of that kingdom, “I must proclaim the good news of the kingdom of God to the other towns too, for that is what I was sent to do.” Luke 4:43 Net Bible. When Jesus sends out the seventy, He tells them to say, “The kingdom of God has come upon you!” Luke 10:9b Net Bible. Interestingly in that same passage Jesus makes this comment as well, “The one who listens to you listens to me, and the one who rejects you rejects me, and the one who rejects me rejects the one who sent me.” Luke 10:16 Net Bible. Do you see a chain of authority? Do you see the relationships here and how your relationship with those with whom you share the gospel message is a connection through you to God? We are the messengers now, the ones sent forth. What better place to preach the gospel than in our own homes, churches, and classrooms?