Keys of the kingdom

Mt 16:19 And I will give unto thee the keys of the kingdom of heaven: and whatsoever thou shalt bind on earth shall be bound in heaven: and whatsoever thou shalt loose on earth shall be loosed in heaven.

Jud 3:25 And they tarried till they were ashamed: and, behold, he opened not the doors of the parlour; therefore they took a key, and opened [them]: and, behold, their lord [was] fallen down dead on the earth.

Isa 22:22 And the key of the house of David will I lay upon his shoulder; so he shall open, and none shall shut; and he shall shut, and none shall open.

Lu 11:52 Woe unto you, lawyers! for ye have taken away the key of knowledge: ye entered not in yourselves, and them that were entering in ye hindered.