'Three' in the Bible

But now Yahweh speaks, saying, "In three years, like [the] years of a hired worker, the glory of Moab will become contemptible, with all of the great multitude, and [the] remnant [will be] a few, small, not strong.

And gleanings will be left over in it, as {when an olive tree is beaten}, two [or] three ripe olive berries in [the] top of a branch, four [or] five on its fruitful branches," {declares} Yahweh, the God of Israel.

Then Yahweh said, "Just as my servant Isaiah has walked naked and barefoot three years [as] a sign and a portent against Egypt and Cush,