They glorified God - See the notes at Matthew 5:16. To “glorify” God, here, means to “praise him,” or to acknowledge his power. The expression, “which had given such power to people,” was a part of “their” praise. It expresses no sentiment of the evangelist about the nature of Christ, but is a record of their feelings and their praise.
Related Commentaries of Matthew 9:8
Matthew 9:8
8 But when the multitudes saw it, they marvelled, and glorified God, which had given such power unto men.