'Three' in the Bible

And I heard as it were a voice in the midst of the four living creatures saying, A measure of wheat for a shilling, and three measures of barley for a shilling; and the oil and the wine hurt thou not.

And I saw, and I heard an eagle, flying in mid heaven, saying with a great voice, Woe, woe, woe, for them that dwell on the earth, by reason of the other voices of the trumpet of the three angels, who are yet to sound.

By these three plagues was the third part of men killed, by the fire and the smoke and the brimstone, which proceeded out of their mouths.

And from among the peoples and tribes and tongues and nations do men look upon their dead bodies three days and a half, and suffer not their dead bodies to be laid in a tomb.

And after the three days and a half the breath of life from God entered into them, and they stood upon their feet; and great fear fell upon them that beheld them.

And I saw coming 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, as it were frogs:

And the great city was divided into three parts, and the cities of the nations fell: and Babylon the great was remembered in the sight of God, to give unto her the cup of the wine of the fierceness of his wrath.

on the east were three gates; and on the north three gates; and on the south three gates; and on the west three gates.