'Forty Years' in the Bible

For the man was above forty years old, on whom this sign of the healing had been wrought.

And when he was forty years old, it came into his heart to visit his brethren, the sons of Israel.

And when forty years were completed, there appeared to him in the wilderness of Mount Sinai an angel in the flaming fire of a bush.

This very man brought them out, working wonders and signs in the land of Egypt, and in the Red Sea, and in the wilderness forty years.

But God turned away, and gave them up to worship the host of heaven; as it is written in the book of the Prophets, "Did ye offer to me slain beasts and sacrifices for forty years in the wilderness, O house of Israel?

and for about forty years he nourished them in the wilderness.

And afterward they asked for a king; and God gave them Saul the son of Kish, a man of the tribe of Benjamin, for forty years;

where your fathers tempted me by proving me, and saw my works forty years.

And with whom was he offended forty years? Was it not with those who sinned, whose carcasses fell in the wilderness?