As I write this post, I'm sleep-deprived. It's part of the blessing of new fatherhood. Since baby Elora came into this world two weeks ago, neither her mother nor myself have slept any longer than 2-3 hours at a time. I know we're not special in this respect--all parents of newborns go through this. But it's in this sleep-deprived state that this passage was especially encouraging:
And let us not grow weary of doing good, for in due season we will reap, if we do not give up. So then, as we have opportunity, let us do good to everyone, and especially to those who are of the household of faith. (Galatians 6:9-10)
Paul exhorts the Christians in Galatia to keep doing good to others and to not grow weary. The basis for this call to diligence is that eventually, those who sow goodness will reap. Sometimes, God provides the reaping of the good work in this life (e.g. seeing someone come to Christ), and if He doesn't, certainly He will provide it in eternity (i.e. treasures in heaven where moth and rust don't destroy).
Because we know we will reap from sowing goodness, we ought to do good to everyone, especially to those who are of the household of faith. In other words, we should do good to believer and unbeliever alike, but especially to the fellow believer, because we're family in Christ.
Right now in my situation, the call is to do good to my daughter and my wife, to take good care of them, even when it's tough. In due season, I will reap, if I don't give up.
The same is true for you, child of God, in whatever situation you're in. Do good to everyone, especially Christians. Don't grow weary. Because you will reap in due season.