I ♥️ this verse, Jesus just keeps it so real, this is not something a human being would say with out the Holy Ghost I think. This verse and the application of it has really helped me in life, especially in the secular work place. This mindset of expecting nothing for doing everything required of me simply made me better at work than my coworkers with a different mindset. Most do less than is required of them and expect more than what is promised to them. Any mindset contrary to the one in this verse is wrong. We don't get excited about a light bulb turning on when we flip a switch, it's SUPPOSED to do that, so are we SUPPOSED to obey God always without expectation of a reward.
If I do something for someone and get nothing out of it or if I obey God and get no immediate gratification from it I will resolve to not be discouraged, a more specific example, if in my devotions or prayers I do not get emotional satisfaction I will not slack in my readings or prayer