Ephesians 4:23

And be renewed in the spirit of your mind. Or by the Spirit that is in your mind; that is, by the Holy Spirit; who is in the saints, and is the author of renovation in them; and who is the reviver and carrier on, and finisher of that work, and therefore that is called the renewing of the Holy Spirit, Titus 3:5 or rather the mind of man, which is a spirit, of a spiritual nature, immaterial and immortal, and is the seat of that renewing work of the Spirit of God; which shows, that the more noble part of man stands in need of renovation, being corrupted by sin: and this renewing in it, designs not the first work of renovation; for these Ephesians had been renewed, and were made new creatures in Christ; but the gradual progress of it; and takes in, if not principally intends, a renewal, or an increase of spiritual light and knowledge, of life and strength, of joy and comfort, and fresh supplies of grace, and a revival of the exercise of grace; and in short, a renewal of spiritual youth, and a restoration of the saints to that state and condition they were in, in times past: and the exhortation to this can only mean, that it becomes saints to be concerned for such revivings and renewings, and to pray for them, as David did, Psalm 51:10 for otherwise, this is as much the work of the Spirit of God, as renovation is at first; and he only who is sent forth, and renews the face of the earth, year by year, can renew us daily in the Spirit of our minds.