mightily. according to strength (Greek. Kratos. App-172.)
grew. Greek. auxano. Compare Acts 6:7; Acts 12:24.
God. The texts read "the Lord".
prevailed. Same word as in. Acts 19:16. This verse is an example of the Figure of speech Epicrisis. App-6.
Related Commentaries of Acts 19:20
Acts 19:20
20 So mightily grew the word of God and prevailed.