I Will Serve Before I Demand

I was first introduced to the Declaration of a Worldchanger in July 2011, on my first mission trip, to Mexico. Global Expeditions, the organization I go on missions with, uses this declaration every single day on every single mission trip they go on. It says:
Today, I will live honorably through my thoughts, actions, and speech. I choose to be full of faith; I will not only be a hearer but a doer of the Word of God. I will serve before I demand, I will love and not hate, and I will give before I take. Today, I choose to make a difference in this world and to be a part of something bigger than myself. I choose to dedicate my life to prayer, and as God for His miraculous power and the courage to do the impossible. I will make Godly relationships a priority in my life as I esteem others as higher than myself. Today, I will live my life in such a way that I will change the world.
I've known of this declaration for just over a year and a half now, but I haven't viewed it as something to actually live by and be applied to my life until recently . I remember one day when I was in Mexico (this recent trip) we were on the bus either going to a ministry site or back to the base. Someone said or did something, I'm not sure who or what, but my team leader mentioned the phrase "I will serve before I demand," as a prompter to do the right thing. I remember just having a revelation, like, wow, I can actually apply this to my life.
Ever since, the Holy Spirit has been convicting me over and over and over with those words. "I will serve before I demand." It's changed my life.
And do you know how hard it is to live by that principle when no one else is?? It's so hard! My brothers went with me to Mexico, so they're also familiar with the declaration. Sometimes, the Spirit whispers, "I will serve before I demand," and I think, "Well why can't they serve before they demand a little more?!" I am always so tempted to just say it to their face. But I know that it's God's job to work on them, not mine.
And really, this isn't a new concept. It's in the Gospel a hundred times. I just needed it in a format that I can be reminded of daily.

"You, my brothers, were called to be free. But do not use your freedom to indulge it the sinful nature, rather, serve one another in love." Galatians 5:13