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20 And when they entered among the heathen, whither they went, they profaned my holy name, when they said to them, These are the people of the LORD, and are gone forth out of his land.
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.
14 Therefore thou shalt devour men no more, neither bereave thy nations any more, saith the Lord GOD.