'Behind' in the Bible

and seven priests bearing seven trumpets of the jubilee before the ark of Jehovah are walking, going on, and they have blown with the trumpets -- and he who is armed is going before them, and he who is gathering up is going behind the ark of Jehovah -- going on and blowing with the trumpets.

And the men of Ai look behind them, and see, and lo, the smoke of the city hath gone up unto the heavens, and there hath not been in them power to flee hither and thither -- and the people who are fleeing to the wilderness have turned against the pursuer, --