John Gill Commentary Acts 16:5

"So the churches were strengthened in the faith, and increased in number daily." — Acts 16:5 (ASV)

And so were the churches established in the faith
Of Christ, both in the grace and doctrine of faith; and that both by the preaching of the Gospel by the apostle and his companions, and by the decrees of the elders delivered by him:

and increased in number daily ;
as well as in gifts and grace.