Galatians 5:16

(16) Walk.—Conduct yourselves: a metaphor very common in the writings of St. Paul, but not peculiar to them. It occurs three times in the Gospels, once in the Acts, thirty-three times in St. Paul’s Epistles, once in the Hebrews, ten times in the Epistles of St. John, and once in the Apocalypse.

In the Spirit.—Rather, by the Spirit—i.e. by the rule of the Spirit, as the Spirit directs. “The Spirit” is here undoubtedly the Holy Spirit—the Spirit of God, not the spirit in man.