Greek: κλεις [kleis] (Noun feminine) A key.
κλεις [kleis] appears 6 times in the NT:
(1) Matthew 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. - τας κλειδας [tas kleidas] Accus. pl. Variant: τας κλεις [tas kleis].
(2) Luke 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. - την κλειδα [tên kleida] Accus. sing.
(3) Revelation 1: 18
I [am] he that liveth, and was dead; and, behold, I am alive for evermore, Amen; and have the keys of hell and of death. - τας κλεις [tas kleis] Accus. pl.
(4) Revelation 3: 7
And to the angel of the church in Philadelphia write; These things saith he that is holy, he that is true, he that hath the key of David, he that openeth, and no man shutteth; and shutteth, and no man openeth; - την κλειν [tên klein] Accus. sing. Variant: την κλειδα [tên kleida].
(5) Revelation 9: 1
And the fifth angel sounded, and I saw a star fall from heaven unto the earth: and to him was given the key of the bottomless pit. - η κλεις [hê kleis] Nom. sing.
(6) Revelation 20: 1
And I saw an angel come down from heaven, having the key of the bottomless pit and a great chain in his hand. - την κλειν [tên klein] Accus. sing. Variant: την κλειδα [tên kleida].
κλεις [kleis] appears 6 times in the NT:
(1) Matthew 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. - τας κλειδας [tas kleidas] Accus. pl. Variant: τας κλεις [tas kleis].
(2) Luke 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. - την κλειδα [tên kleida] Accus. sing.
(3) Revelation 1: 18
I [am] he that liveth, and was dead; and, behold, I am alive for evermore, Amen; and have the keys of hell and of death. - τας κλεις [tas kleis] Accus. pl.
(4) Revelation 3: 7
And to the angel of the church in Philadelphia write; These things saith he that is holy, he that is true, he that hath the key of David, he that openeth, and no man shutteth; and shutteth, and no man openeth; - την κλειν [tên klein] Accus. sing. Variant: την κλειδα [tên kleida].
(5) Revelation 9: 1
And the fifth angel sounded, and I saw a star fall from heaven unto the earth: and to him was given the key of the bottomless pit. - η κλεις [hê kleis] Nom. sing.
(6) Revelation 20: 1
And I saw an angel come down from heaven, having the key of the bottomless pit and a great chain in his hand. - την κλειν [tên klein] Accus. sing. Variant: την κλειδα [tên kleida].
