'Behind' in the Bible

And the priest said, The sword of Goliath the Philistine, whom thou slewest in the vale of Elah, behold, it is here wrapped in a cloth behind the ephod: if thou wilt take that, take it; for there is no other save that here. And David said, There is none like that; give it me.

David also arose afterward, and went out of the cave, and cried after Saul, saying, My lord the king. And when Saul looked behind him, David bowed with his face to the earth, and did obeisance.

So David went, he and the six hundred men that were with him, and came to the brook Besor, where those that were left behind stayed.

But David pursued, he and four hundred men; for two hundred stayed behind, who were so faint that they could not go over the brook Besor.