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35 And they shall say, This land that was desolate is become like the garden of Eden; and the waste and desolate and ruined cities are become fortified, and are inhabited.
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.
20 And every thing that she lieth upon in her separation shall be unclean: every thing also that she sitteth upon shall be unclean.