Observation: The disciples bring up an interesting situation ... someone who is not a follower of Jesus was casting out demons in Jesus' name. They told the man to stop, but Jesus tells them not to stop such actions because even if he isn't 'following' Jesus, he must believe in the power of Jesus enough to at least not oppose Jesus. And if such a person doesn't oppose Jesus, as he says, he must be 'for' Jesus.
Application: Due to recent events, I have recently seen several people whom I would perceive to have little to no belief in Jesus who say they are "praying" for certain outcomes. They mean it; They are making an appeal to God in the form of a prayer over some issue or circumstance. When I see this, I wonder about their faith, and this passage often comes to mind and how it applies to my attitude.
If these individuals are not followers of Jesus, what should I think about them saying they are praying to God for something?
Jesus gives the most basic answer ... this is good, so let them pray and don't criticize them. If they are showing they believe in God enough to pray, they are on the side of heaven and Jesus. They cannot now hate Jesus and Christianity. (Though I understand that praying to God and believing in Jesus as the son of God are two very different things.)
Along this line, I feel it is good to pray into their prayer and become that second person in the "where two or more are gathered in my name" equation, for it would be great to see prayers answered for such people. Just because they pray, doesn't mean they believe, but it is harder to not believe in the face of an answer to prayer.
So ... it is hypocritical of such people if they say they do not believe in God and Jesus, then pray in a time of fear or personal crisis? I used to think 'yes' but actually, I'm not sure. Maybe their beliefs have changed. Maybe they have just a little belief and thus think that doesn't qualify as faith. Maybe they just, plain and simple, aren't sure either way. In any circumstance, as Jesus points out, if they aren't "against us" then that's a good thing.
Prayer: Lord, I thank you today for your patience. You see us all, as individuals, struggle with our faith, belief, and behavior, and you patiently love us in return while we figure out the truth of life. It is a testament to your love and wisdom that you gave us free will, then allow that free will to even take wrong turns, all while guiding us back to you. May all who wander find you today. Amen.