Therefore, whenever we have the opportunity, we should do good to everyone—especially to those in the family of faith.
One of the traps that is so easy to fall into in life is the trap of motivation. We say, "I just don't feel like doing that right now, I'll do it later." Since we are waiting for our feelings to catch up with what we now we ought to do, what ought to be done doesn't get done. That is why people say, "The road to hell is paved with good intentions." We may have had the good intentions, but good intentions don't love other people.
Paul tells us that we should not wait on our feelings. Instead we should make use of the opportunity that is in front of us. Even when we don't feel like doing the task or helping our neighbor we do it because it is an opportunity to show God's love to them. Life is too short to wait around for us to feel like loving, serving, forgiving, and worshipping. We need to buy up the time we have by making the most of the opportunities God sends our way.
The reason this is important is because when we base our actions off of our feelings we are putting ourselves front and center. We are not concerned about loving God and loving people, we are only concerned about loving ourselves. A life which is lived based on our feelings at the moment is a very selfish life.
The discipline of serving others, especially when we don't feel like serving, teaches us what it means to love people. It isn't going to come easy, but if we are intentional about doing it we will soon discover that serving and sacrificing our time to help someone else comes a little bit easier. We will also discover that we love God and we love people just a little bit more.