'Three' in the Bible

and I heard a voice in the midst of the four living creatures saying, 'A measure of wheat for a denary, and three measures of barley for a denary,' and 'The oil and the wine thou mayest not injure.'

And I saw, and I heard one messenger, flying in the mid-heaven, saying with a great voice, 'Woe, woe, woe, to those dwelling upon the land from the rest of the voices of the trumpet of the three messengers who are about to sound.'

by these three were the third of men killed, from the fire, and from the smoke, and from the brimstone, that is proceeding out of their mouth,

and they shall behold -- they of the peoples, and tribes, and tongues, and nations -- their dead bodies three days and a half, and their dead bodies they shall not suffer to be put into tombs,

And after the three days and a half, a spirit of life from God did enter into them, and they stood upon their feet, and great fear fell upon those beholding them,

and I saw come out of the mouth of the dragon, and out of the mouth of the beast, and out of the mouth of the false prophet, three unclean spirits like frogs --

And it came -- the great city -- into three parts, and the cities of the nations did fall, and Babylon the great was remembered before God, to give to her the cup of the wine of the wrath of His anger,

at the east three gates, at the north three gates, at the south three gates, at the west three gates;