Like it or not,but there is a finite population number that the earth can support,and we are probably close to being at that number right now. Unless population growth can be controlled by birth control,there can only be an increase in the amount of taxes the working people pay to provide food,clothing,shelter,and medical care for the non-working. And the non-working numbers will increase as technology removes labor jobs from the labor pool.
I know this isn't popular with those of you who are religious and opposed to birth control,but it is the truth. It is also the truth that the basis for your religious beliefs in increasing population numbers has more to do with more political power and wealth for your religions than it does any kind of "Godliness".