There are a lot of times in our daily lives when we try hard to do good because we know that it is right. We know that we should do good and not expect to get something back, yet sometimes because we try so hard—and many times don't receive an award—we wonder if it is worth it.
Galatians 7:7-10 says, "Do not be deceived: God cannot be mocked. A man reaps what he sows. The one who sows to please his sinful nature, from that nature will reap destruction; the one who sows to please the Spirit, from the Spirit will reap eternal life. Let us not become weary in doing good, for at the proper time we will reap a harvest if we do not give up. Therefore, as we have opportunity, let us do good to all people, especially to those who belong to the family of believers."
The author of this passage reminds us that God will provide and reward those who do good things in order to please Him. The verse guarantees that "at the proper time we will reap a harvest". Notice though, that the condition is that we do not give up. If we do, then we will not reap the harvest that God had intended for us. The author goes on to remind us that we need to "do good to all people, especially to those who belong to the family of believers".
Are you in a situation where you feel that you are doing all the work and you haven't received any benefit? Take comfort in God and His word. Memorize this verse and play it back in your head when you feel that you are doing good for no reason. Remember, God cannot be mocked; eventually you will obtain your reward.