"Teaching them to observe all things whatsoever I have commanded you," is different from, "teaching them all things whatsoever I have commanded you."
More than anything else, our religious experience has been reduced to classroom instruction, rather than practical, observable, models of obedience. We talk about what it means to be a Christian. We memorize verses, and sing inspirational lyrics about our faith. But, in the realm of observation, well, as a rule, we don't seem to look like anyone else.
I found the statistics about religious observance in my own community. Then I tool a little survey. "How many people do you think go to church in this city? Give me a percentage."
"I dunno, maybe 75%?"
"At least 80%."
"This is a very religious community. At least 90% of the people here go to Church."
"Everyone I know goes to Church."
But, city-data suggests that only 28% of this local population attend regular religious services. So, you'd think with such a small demographic actively engaged in religious worship, they should stand out. But, they don't. In fact, if you look at the people in this community, watch them, observe them, there is no single attribute or characteristic that distinguishes them from the rest of the population, except they are dressed better on Sunday afternoon when they go to Wal-Mart.
Jesus said this, "By this shall all men know (experience may be a better translation of the Greek word "ginosontai") that you are My disciples: that you have love, each one, toward others."
So, we wonder why Christian affiliation is the lowest it has ever been since we began comparing demographics in the 1930s. Maybe it's because we look less distinctive than we ever have in history.
I think the problem is that when we say, "I want to be around godly people, people who follow Christ," what we mean is, "I want to be around people who know how to talk about Jesus," regardless of what they do, or how they live. Our Christian experience has become an expression of what we think, or how we feel, completely isolated from what we do, or how we behave toward the world around us.
Jesus made absolutely clear that His followers must reach out to help those in need; while modern rationality has deemed such conduct to be personally dangerous, or culturally inappropriate. Jesus emphatically declared that we must never dishonor or insult the intelligence of others (that's Matthew 5:22, in case you wondered), but we've conveniently applied this to only those with whom we agree.
James repeats an old Jewish proverb, "Show me your faith without you works and I'll show you my faith by my works." The truth is, when we are talking about observation, James offers an obvious conclusion, "Faith without works is dead."
Maybe that could be why, with all the billions of dollars we spend on our religiosity, we literally have nothing to show for it.