One of the many reasons I converted from evangelical Protestantism to Catholicism is that the Catholic Church taught that Christians are actually supposed to be “DOING SOMETHING.” (Gasp–Good Works!!!)
In evangelical Protestant churches, we were taught that we should just sit back and let GOD do something. We had no power to do ANYTHING. It would be wrong of us to try to add any good works to what Jesus already did on the cross. And it would be wrong of us to think about our sins; such thoughts showed a lack of faith in the finished work of Christ.
The result of this evangelical teaching is a lot of lazy, sinful Christians who never worry about the presence of sin and absence of good works in their lives, since they have their “ticket to heaven” : “faith in Jesus as their personal Savior.”
Yuck! I always knew that something was cracked about that theology. It encouraged my natural tendency to be slothful, selfish, and arrogant.
So to me, an ex-evangelical Protestant, the lyrics “Let us build the City of God” sound magnificent. The idea that I actually have a calling to “do something” to help build up God’s Kingdom is very Biblical, not heretical at all.
The evangelical alternative words would be “Let us sit and watch God build His city up in heaven, not on this horrible sinful earth, and while we watch Him work, we will praise Him for forgiving all our sins, past present and future and giving us eternal life in that city.”
If you sing it chant style, it sounds pretty good. Eternal life in heaven absolutely free. In fact, is it possible that your priest doesn’t like the song because some Christians have gotten mad at him for admonishing them to get off of their butts and work?