For a little background, I attended a Baptist-leaning, "inter-denominational" bible college from 2001-2005. I didn't know who John Piper was before I enrolled, but by the time I graduated, I knew a lot about him. He was highly regarded by the bible professors and students. We used his books as textbooks sometimes. I attended his church frequently with my friends. I loved his use of logic and how he could pick apart a small set of verses to make an hour-long sermon. As a practiced Lutheran, I was not always comfortable with some of his positions, but I felt a strong obligation to agree with him on everything due to peer pressure.
A few years after college and after much thought and introspection, I came to the conclusion that love should be the most important aspect of my Christian faith. It seemed to me that love was the overarching theme of the bible, the lesson of many of its stories, and Jesus himself said that loving God and others were the greatest commandments. As I tried to figure out what it would look like to live a life where love took first place, a lot of things changed in my belief system. I learned to care about people as they were and not just judging where they stood with God. I stopped defining love as trying to make others follow Christian rules for godly living, and allowed my emotions to have a valid influence in determining right from wrong.
One of the most surprising things that came from this was that I rediscovered how good it felt to do good unto others. I was no longer volunteering out of a sense of duty or obligation, not even peer pressure. I was doing it because it made me happy to be helping someone else. It was a way to put more love into this world. I cannot explain how freeing that change felt. It was replacing hollow lies to myself with genuine love and good will. I no longer had an ulterior motive to influence or save someone's soul; I was doing good deeds because I cared about people and their well-being.
So when I came across Piper's post that stated altruism is not genuine love and is unbiblical and atheistic, I was dismayed and even angry.
So I answer again: "Doing a good deed for others with no view to any reward" is unbiblical and atheistic. It dishonors God. He offers more joy in his fellowship to those who do right "for his sake" than "for right's sake." If we don't embrace the offer of this reward in doing good, we belittle him. But if do embrace the offer, we show him as our supremely desired treasure - above all the rewards of doing wrong.
Doing good deeds to be rewarded by God either here or in heaven is something I am familiar with. It was the primary motivation for me from the ages of 17 to 25. And I will tell you, it didn't feel like love. Not the kind of love you feel as an emotion that comes from the heart. But many Christians believe the heart is deceitful, and emotions cannot be trusted. They redefine love as obedience. As action. I've written before about how the "love is a choice" dogma can lead to abuse in religion.
From where I stand today, I cannot really picture a good god who views true altruism to be dishonoring. The God of John Piper and most of Calvinism does not seem like a God worthy of worship.
In this blog, I usually talk about purity with the intent of showing how messed up the church's view of sexual purity is. I do not value the purity movement's purity. But I do value purity of the heart. I value genuineness, love, and good intent. And Piper's views do not exemplify those things to me. In fact, it more exemplifies what happens when you allow cold hard logic to be your only guide to interpretation of God and scripture, excluding feelings, experience, observation and intuition.
That is not to say there is not plenty of talk about joy and happiness in Piper's writing, and plenty of scripture references. Read it for yourself and see what you think. I think I would interpret the verses differently and probably define "joy" just as differently as we define "love."