Revelation 9:19

For their power is in their mouth, and in their tails: for their tails were like unto serpents, and had heads, and with them they do hurt.
Word Reference
Original Word Definitions
G3588 T-NSF
ho
the (sometimes to be supplied, at others omitted, in English idiom)
  • this, that, these, etc. Only significant renderings other than ___%___the___%___ counted
γὰρ
G1063 CONJ
gar
properly, assigning a reason (used in argument, explanation or intensification; often with other particles)
  • for
ἐξουσία
G1849 N-NSF
exousia
privilege, i.e., (subjectively) force, capacity, competency, freedom, or (objectively) mastery (concretely, magistrate, superhuman, potentate, token of control), delegated influence
  • power of choice, liberty of doing as one pleases
    • leave or permission
    physical and mental power
    • the ability or strength with which one is endued, which he either possesses or exercises
    the power of authority (influence) and of right (privilege)"the power of rule or government (the power of him whose will and commands must be submitted to by others and obeyed)
    • universally
      • authority over mankind
      specifically
      • the power of judicial decisions
      • "of authority to manage domestic affairs
      metonymically
      • a thing subject to authority or rule
        • jurisdiction
        one who possesses authority
        • a ruler, a human magistrate
        • "the leading and more powerful among created beings superior to man, spiritual potentates
      a sign of the husband's authority over his wife
      • the veil with which propriety required a women to cover herself
      the sign of regal authority, a crown
αὐτῶν
G846
autos
the reflexive pronoun self, used (alone or in the comparative G1438) of the third person, and (with the proper personal pronoun) of the other persons
  • himself, herself, themselves, itself
  • "he, she, it"the same
ἐν
G1722
en
___%___in,___%___ at, (up-)on, by, etc
  • in, by, with
τῷ
G3588
ho
the (sometimes to be supplied, at others omitted, in English idiom)
  • this, that, these, etc. Only significant renderings other than ___%___the___%___ counted
στόματι
G4750
stoma
the mouth (as if a gash in the face); by implication, language (and its relations); figuratively, an opening (in the earth); specially, the front or edge (of a weapon)
  • the mouth, as part of the body: of man, of animals, of fish, etc.
    • since thoughts of a man's soul find verbal utterance by his mouth, the ___%___heart___%___ or ___%___soul___%___ and the mouth are distinguished
    the edge of a sword
αὐτῶν
G846
autos
the reflexive pronoun self, used (alone or in the comparative G1438) of the third person, and (with the proper personal pronoun) of the other persons
  • himself, herself, themselves, itself
  • "he, she, it"the same
εἰσιν
G1526
eisi
they are
  • are, be, were, etc.
καὶ
G2532
kai
and, also, even, so then, too, etc.; often used in connection (or composition) with other particles or small words
  • and, also, even, indeed, but
ἐν
G1722 PREP
en
___%___in,___%___ at, (up-)on, by, etc
  • in, by, with
ταῖς
G3588
ho
the (sometimes to be supplied, at others omitted, in English idiom)
  • this, that, these, etc. Only significant renderings other than ___%___the___%___ counted
οὐραῖς
G3769
oura
a tail
  • a tail
αὐτῶν·
G846 P-GPM
autos
the reflexive pronoun self, used (alone or in the comparative G1438) of the third person, and (with the proper personal pronoun) of the other persons
  • himself, herself, themselves, itself
  • "he, she, it"the same
αἱ
G3588
ho
the (sometimes to be supplied, at others omitted, in English idiom)
  • this, that, these, etc. Only significant renderings other than ___%___the___%___ counted
γὰρ
G1063
gar
properly, assigning a reason (used in argument, explanation or intensification; often with other particles)
  • for
οὐραὶ
G3769
oura
a tail
  • a tail
αὐτῶν
G846 P-GPM
autos
the reflexive pronoun self, used (alone or in the comparative G1438) of the third person, and (with the proper personal pronoun) of the other persons
  • himself, herself, themselves, itself
  • "he, she, it"the same
ὅμοιαι
G3664
homoios
similar (in appearance or character)
  • like, similar, resembling
    • like: i.e., resembling
    • "like: i.e., corresponding to a thing
ὄφεσιν
G3789
ophis
a snake, figuratively, (as a type of sly cunning) an artful malicious person, especially Satan
  • snake, serpent
  • "with the ancients, the serpent was an emblem of cunning and wisdom"Satan, the Devil
ἔχουσαι
G2192
echō
to hold (used in very various applications, literally or figuratively, direct or remote; such as possession; ability, contiuity, relation, or condition)
  • to have, i.e., to hold
    • to have (hold) in the hand, in the sense of wearing, to have (hold) possession of the mind (refers to alarm, agitating emotions, etc.), to hold fast keep, to have or comprise or involve, to regard or consider or hold as
    to have i.e., own, possess
    • external things such as pertain to property or riches or furniture or utensils or goods or food etc.
    • "used of those joined to any one by the bonds of natural blood or marriage or friendship or duty or law etc, of attendance or companionship
    to hold one's self or find one's self so and so, to be in such or such a condition"to hold one's self to a thing, to lay hold of a thing, to adhere or cling to
    • to be closely joined to a person or a thing
κεφαλάς
G2776
kephalē
the head (as the part most readily taken hold of), literally or figuratively
  • the head, both of men and often of animals
  • "metaphorically anything supreme, chief, prominent
    • of persons, master lord: of a husband in relation to his wife
    • "of Christ: the Lord of the husband and of the Church"of things: the corner stone
καὶ
G2532 CONJ
kai
and, also, even, so then, too, etc.; often used in connection (or composition) with other particles or small words
  • and, also, even, indeed, but
ἐν
G1722 PREP
en
___%___in,___%___ at, (up-)on, by, etc
  • in, by, with
αὐταῖς
G846
autos
the reflexive pronoun self, used (alone or in the comparative G1438) of the third person, and (with the proper personal pronoun) of the other persons
  • himself, herself, themselves, itself
  • "he, she, it"the same
ἀδικοῦσιν.
G91
adikeō
to be unjust, i.e., (actively) do wrong (morally, socially or physically)
  • absolutely
    • to act unjustly or wickedly, to sin,
    • "to be a criminal, to have violated the laws in some way"to do wrong"to do hurt
    transitively
    • to do some wrong or sin in some respect
    • "to wrong some one, act wickedly towards him"to hurt, damage, harm

ἡ γὰρ ἐξουσία αὐτῶν ἐν τῷ στόματι αὐτῶν εἰσιν καὶ ἐν ταῖς οὐραῖς αὐτῶν· αἱ γὰρ οὐραὶ αὐτῶν ὅμοιαι ὄφεσιν ἔχουσαι κεφαλάς καὶ ἐν αὐταῖς ἀδικοῦσιν.
19
For their power is in their mouth, and in their tails: for their tails were like unto serpents, and had heads, and with them they do hurt.
Cross References

Isaiah 9:15

זָקֵן וּנְשׂוּא-פָנִים הוּא הָרֹאשׁ וְנָבִיא מֽוֹרֶה-שֶּׁקֶר הוּא הַזָּנָֽב׃
15
The ancient and honourable, he is the head; and the prophet that teacheth lies, he is the tail.

Revelation 9:10

καὶ ἔχουσιν οὐρὰς ὁμοίας σκορπίοις καὶ κέντρα ἦν ἐν ταῖς οὐραῖς αὐτῶν καὶ ἐξουσία αὐτῶν ἀδικῆσαι τοὺς ἀνθρώπους μῆνας πέντε
10
And they had tails like unto scorpions, and there were stings in their tails: and their power was to hurt men five months.

Ephesians 4:14

ἵνα μηκέτι ὦμεν νήπιοι κλυδωνιζόμενοι καὶ περιφερόμενοι παντὶ ἀνέμῳ τῆς διδασκαλίας ἐν τῇ κυβείᾳ τῶν ἀνθρώπων ἐν πανουργίᾳ πρὸς τὴν μεθοδείαν τῆς πλάνης
14
That we henceforth be no more children, tossed to and fro, and carried about with every wind of doctrine, by the sleight of men, and cunning craftiness, whereby they lie in wait to deceive;