I'm tired of hearing about the church's ambition to grow. To be fair, I have to carefully balance my own perspective. We all like the "body of Christ" analogies and I think it has a lot to offer on this topic. If you have the mind for it, feel free to analogize just about everything that follows. I'm sure you'll see I'm only scratching the surface of this smelly sticker enough to see if its aroma makes your mouth water.
First, growth in general is good and good growth calls for rejoicing. It replaces dead cells and adds new ones where more strength is needed, whether for bones and muscles or immune and circulatory systems. It turns babies into youths into adults. It makes hair fun to cut and style and it makes finger and toe nails resilient tools. And all this good growth has one obvious thing in common, only God has true control over it. We can boost it with steroids or send it sideways with gluttony, but we are helpless when it refuses to happen and sometimes equally helpless when it just won't stop. That's the pattern for countless disorders.
If the world is teaching us anything right now, could it be that growth is not always good? Stock market bubbles. Cancer. Inner-city food deserts. Extremism. etc. Can we make the transition to concerning ourselves with the health of Christ's body rather than it's size? Not only do we have much more control over that but scripture aims us straight at it with the assurance that a healthy body grows (and stops growing) "as God causes it to grow" according to what's best for it. There are already books on this topic so I won't try fit one in the space of this post. But I would definitely encourage you to give it some thought before we're too spiritually obese for our part of the body to support itself.