Today, that command clearly is not being followed as birthrates drop across the world.
A couple hundred years ago Thomas Malthus was warning that societies would not be able to sustain themselves due to unchecked population growth. More recently, it’s been predicted that a population explosion would lead to mass starvation in a very short time.
None of this has materialized, and we actually have the opposite on our hands.
Worldwide, birthrates have declined by more than 50% in the past 30 years (since 1979). There are now 59 nations, with 44% of the world’s population, with below-replacement fertility.
If this keeps up, it will be devastating as many nations simply will be unable to keep up and sustain themselves. They will effectively go out of business.
It’s not hard to see that this trend is the direct result of failing to obey God’s mandate to be fruitful and multiply.
Learn more about demographic winter. It will change the way look at economics and children.