When I reach out to one person, explaining the Gospel and helping them repent and put their faith in Jesus Christ, that one represents tremendous potential. That one person has family and friends who could then be influenced to follow Jesus. Those family members and friends have yet another tier of connections.
The connections go on and on … and potentially from one generation to the next to the next. Over time, one can become thousands, even millions. Like a stone dropped into a calm lake, ripples flow out in everwidening circles from the point of impact.
Never underestimate the power of one when it comes to sharing the Gospel of Jesus Christ.