This is information that gives an update on the spread of the word of God and on what Barnabas and Saul were doing. (See: [[rc://en/ta/man/translate/writing-endofstory]])
The word of God is spoken of as if it was a living plant that was able to grow and reproduce. AT: "the message of God spread to more places and more people believed in him" (See: [[rc://en/ta/man/translate/figs-metaphor]])