'Opening' in the Bible

and the snuffers, and the bowls, and the spoons, and the censers, of gold refined, and the opening of the house, its innermost doors to the holy of holies, and the doors of the house to the temple, of gold.

and king Rehoboam maketh in their stead shields of brass, and hath given them a charge on the hand of the heads of the runners who are keeping the opening of the house of the king;

And the king of Israel and Jehoshaphat king of Judah are sitting, each on his throne, clothed with garments, and they are sitting in a threshing-floor at the opening of the gate of Samaria, and all the prophets are prophesying before them.