'Behind' in the Bible

He looked behind him and saw them, and cursed them in the name of Yahweh. Two female bears came out of the woods, and mauled forty-two of those youths.

But Elisha was sitting in his house, and the elders were sitting with him. Then the king sent a man from before him; but before the messenger came to him, he said to the elders, "Do you see how this son of a murderer has sent to take away my head? Behold, when the messenger comes, shut the door, and hold the door shut against him. Isn't the sound of his master's feet behind him?"

So there went one on horseback to meet him, and said, "Thus says the king, 'Is it peace?'" Jehu said, "What do you have to do with peace? Fall in behind me!" The watchman said, "The messenger came to them, but he isn't coming back."

Then he sent out a second on horseback, who came to them, and said, "Thus says the king, 'Is it peace?'" Jehu answered, "What do you have to do with peace? Fall in behind me!"

A third part shall be at the gate Sur; and a third part at the gate behind the guard. So you shall keep the watch of the house, and be a barrier.