'Three' in the Bible

But now Jehovah hath spoken, saying, Within three years, as the years of a hireling, the glory of Moab shall be brought into contempt, with all his great multitude; and the remnant shall be very small and of no account.

Yet there shall be left therein gleanings, as the shaking of an olive-tree, two or three berries in the top of the uppermost bough, four or five in the outmost branches of a fruitful tree, saith Jehovah, the God of Israel.

And Jehovah said, Like as my servant Isaiah hath walked naked and barefoot three years for a sign and a wonder concerning Egypt and concerning Ethiopia;