Matthew Poole and continuators on Acts 9:31

31 Then had the churches rest throughout all Judea, and Galilee, and Samaria, and were edified, and walking in the fear of the Lord, and in the comfort of the holy Ghost, were multiplied.

When Paul was sent away, against whom they had the greater spite, as having been as zealous a persecutor as any amongst them.

The Church is frequently compared to a building, and every believer to the Temple of God, 1 Cor. 3.16. and 6.19. which God dwells in; from whence this Metaphor is taken.

Walking is a progressive motion, and so is building, an adding to a Structure till it come to perfection; which signifies, that these believers increased daily in the knowledge of God, in true Piety and Charity, &c.

The word also signifies the exhortation of the holy Ghost, such exhortations as were given from God by the Apostles; to be sure, the comforts of the Spirit, are not [illegible: 1 word] our obedience to the commandments of God; and [illegible: 1 span] to be given here as the reason why the Churches were edified, and did thus increase; because believers walked in the fear of the Lord; and nothing perswades more effectually to the embracing of Religion, than the holy living of such as make profession of it.