Walk
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.
Isaiah 58:6-7
6
"Isn't this the fast that I have chosen: to release the bonds of wickedness, to undo the bands of the yoke, and to let the oppressed go free, and that you break every yoke?
7
Isn't it to distribute your bread to the hungry, and that you bring the poor who are cast out to your house? When you see the naked, that you cover him; and that you not hide yourself from your own flesh?