'Walking' in the Bible

Now one evening, David got up from his bed, and while he was walking on the roof of the king's house, he saw from there a woman bathing; and the woman was very beautiful.

When they were at the great stone which is in Gibeon, Amasa came face to face with them. Now Joab had on his war-dress, and round him a band from which his sword was hanging in its cover; and while he was walking, it came out, falling to the earth.