'Forty Years' in the Bible

For the man was above forty years old, on whom this miracle of healing was showed.

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

"And when forty years were expired, there appeared to him in the wilderness of Mount Sinai, an angel of the Lord in a flame of fire in a bush.

And the same brought them out showing wonders and signs in Egypt, and in the reed sea, and in the wilderness forty years.

Then God turned himself, and gave them up, that they should worship the stars of the sky, as it is written in the book of the prophets, 'O ye of the house of Israel: gave ye to me sacrifices and meat offerings by the space of forty years in the wilderness?

And about the time of forty years, suffered he their manners in the wilderness.

And after that they desired a king, and God gave unto them Saul the son of Kish, a man of the tribe of Benjamin, by the space of forty years.