Study
4 Behold, it is cast into the fire for fuel; the fire devoureth both the ends of it, and the midst of it is burned. Is it suitable for any work?
Walking represents living, and usually means living according to the true things taught to us by the Lord -- to "walk in His ways." When the Lord is pictured walking, it means life itself.
6 Their webs shall not become garments, neither shall they cover themselves with their works: their works are works of iniquity, and the act of violence is in their hands.