Don't just talk the talk, walk the walk! That's Paul's message throughout chapters 4 and 5. This new "walk" is a lifestyle that comes with learning the will of the Lord.
The Worthy Walk of those in the Church
4:1 - Walk in a manner worthy of the calling
4:17 - You must no longer walk as the Gentiles
5:1 - Walk in love, as Christ loved us
5:8 - Walk as children of light
5:15 - Look carefully then how you walk, not as the unwise but the wise