The most powerful means by which you can participate in the Great Commission is by praying. God has ordained it. Praying is the means for sending of laborers into the harvest.
Supporting those who are willing to go to the unengaged peoples is a necessary part of this great task. It is through the act of selfless-giving that makes the act selfless-going possible.
Perhaps you are the one to go. Perhaps God has called you to be the “beautiful feet that brings good news.” Perhaps God will use you to speak to a people group that has never heard the about Jesus! Perhaps.