'Strong' in the Bible

And I saw a strong angel proclaiming with a loud voice, Who is worthy to open the book, and to break its seals?

And the kings of the earth, and the great, and the chiliarchs, and the rich, and the strong, and every bondman and freeman, hid themselves in the caves and in the rocks of the mountains;

And I saw another strong angel coming down out of the heaven, clothed with a cloud, and the rainbow upon his head, and his countenance as the sun, and his feet as pillars of fire,

And he cried with a strong voice, saying, Great Babylon has fallen, has fallen, and has become the habitation of demons, and a hold of every unclean spirit, and a hold of every unclean and hated bird;

for this reason in one day shall her plagues come, death and grief and famine, and she shall be burnt with fire; for strong is the Lord God who has judged her.

standing afar off, through fear of her torment, saying, Woe, woe, the great city, Babylon, the strong city! for in one hour thy judgment is come.

And a strong angel took up a stone, as a great millstone, and cast it into the sea, saying, Thus with violence shall Babylon the great city be cast down, and shall be found no more at all;

And I heard as a voice of a great crowd, and as a voice of many waters, and as a voice of strong thunders, saying, Hallelujah, for the Lord our God the Almighty has taken to himself kingly power.

that ye may eat flesh of kings, and flesh of chiliarchs, and flesh of strong men, and flesh of horses and of those that sit upon them, and flesh of all, both free and bond, and small and great.