'In Acts, the Genesis 1:28 language of "be fruitful and multiply" marks the growth of the Church:
And the word of God continued to be fruitful and the number of disciples multiplied greatly in Jerusalem. (Acts 6:7; our translation).
But the word of God bore fruit and multiplied (Acts 12:24; our translation)
So the word of the Lord continued to bear fruit and prevail mightily. (Acts 19:20; our literal translation....Genesis 1:28 likely does not have in mind only physical children, but children who were also to be spiritual image bearers of God.'
GK Beale and Mitchell Kim, God Dwells Among Us: Expanding Eden to the Ends of the Earth, p.36.