John Wesley on Acts 4:12

There is no other name whereby we must he saved - The apostle uses a beautiful gradation, from the temporal deliverance which had been wrought for the poor cripple, by the power of Christ, to that of a much nobler and more important kind, which is wrought by Christ for impotent and sinful souls. He therein follows the admirable custom of his great Lord and Master, who continually took occasion from earthly to speak of spiritual things.