'Back' in the Bible

And Joshua said to Achan, My son, give, I pray thee, glory to Jehovah the God of Israel, and make confession to him: tell me now what thou hast done, keep it not back from me.

And Joshua did not draw back his hand, which he had stretched out with the javelin, until they had utterly destroyed all the inhabitants of Ai.

And Joshua turned back at that time, and took Hazor, and smote the king thereof with the sword; for Hazor was in times past the head of all those kingdoms.

For if ye in any wise go back, and cleave unto the residue of these nations, these that remain among you, and make marriages with them, and come in unto them and they unto you: