Pastor EA Adeboye In Gen 2:1-3, we see that after the Almighty finished His work of creation, He rested. He gave man the power to be fruitful because He was done with the job of creating.
When God destroyed the world in the time of Noah, he preserved some people and animals in Noah’s Ark because He wasn’t going to create another. That was why after the flood, He reiterated to them “be fruitful and multiply”.