'Behind' in the Bible

Then the priest said, “The sword of Goliath the Philistine, whom you killed in the Valley of Elah, is here wrapped in a cloth behind the ephod; if you would take it for yourself, do so. For there is no other here except for it.” And David said, “There is none like that; give it to me.”

Then David also got up afterward and went out of the cave and called after Saul, saying, “My lord the king!” And when Saul looked behind him, David bowed with his face to the ground and lay himself face down.

So David went, he and the six hundred men who were with him, and came to the brook Besor; there those [who could not continue] remained behind.

But David pursued [the Amalekites], he and four hundred men, for two hundred who were too exhausted to cross the brook Besor stayed behind.