In the four corners of the courtyard there were enclosed courtyards, forty cubits long and thirty wide; these four in the corners were the same size.

Then he made ten basins of bronze; each basin held forty baths and was four cubits, and there was one basin on each of the ten stands.

For in seven days I am going to cause it to rain on the earth for forty days and forty nights; and I will destroy (blot out, wipe away) every living thing that I have made from the surface of the earth.”

It rained on the earth for forty days and forty nights.

Abraham spoke to Him yet again and said, “Suppose [only] forty are found there.” And He said, “I will not do it for the sake of the forty [who are righteous].”

Moses was there with the Lord forty days and forty nights; he ate no bread and drank no water. And he wrote on the tablets the words of the covenant, the Ten Commandments.

According to the number of days in which you spied out the land [of Canaan], forty days, for each day, you shall bear and suffer a year for your sins and guilt, for forty years, and you shall know My displeasure [the revoking of My promise and My estrangement because of your sin].

When I went up the mountain to receive the tablets of stone, the tablets of the covenant which the Lord made with you, I remained on the mountain forty days and forty nights; I did not eat food or drink water.

It came about at the end of forty days and forty nights that the Lord gave me the two tablets of stone, the tablets of the covenant.

Then, as before, I fell down before the Lord for [another] forty days and forty nights; I did not eat food or drink water, because of all the sin you had committed by doing what was evil in the sight of the Lord to provoke Him to anger.

The flood [the great downpour of rain] was forty days and nights on the earth; and the waters increased and lifted up the ark, and it floated [high] above the land.

At the end of [another] forty days Noah opened the window of the ark which he had made;

If five of the fifty righteous are lacking, will You destroy the entire city for lack of five?” And He said, “If I find [at least] forty-five [righteous people] there, I will not destroy it.”

Isaac was forty years old when he married Rebekah, the daughter of Bethuel the Aramean (Syrian) of Paddan-aram, the sister of Laban the Aramean.

Now forty days were required for this, for that is the customary number of days [of preparation] required for embalming. And the Egyptians wept and grieved for him [in public mourning as they would for royalty] for seventy days.

Now it happened after a long time [about forty years] that the king of Egypt died. And the children of Israel (Jacob) groaned and sighed because of the bondage, and they cried out. And their cry for help because of their bondage ascended to God.

The Israelites ate manna forty years, until they reached an inhabited land; they ate the manna until they came to the border of the land of Canaan.

Moses entered the midst of the cloud and went up the mountain; and he was on the mountain forty days and forty nights.

You shall make forty silver sockets under the twenty boards, two sockets under each board for its two dovetails, and two sockets under another board for its two dovetails;

and their forty silver sockets, two sockets under each board.

and he made under the twenty boards forty silver sockets; two sockets under one board for its two tenons (dovetails), and two sockets under another board for its two tenons.

and their forty silver sockets; two sockets under [the end of] each board.

‘You are also to count off seven Sabbaths of years for yourself, seven times seven years, so that you have the time of the seven Sabbaths of years, namely, forty-nine years.

When they returned from spying out the land, at the end of forty days,

Your sons shall be wanderers and shepherds in the wilderness for forty years, and they will suffer for your unfaithfulness (spiritual infidelity), until your corpses are consumed in the wilderness.

So the Lord’s anger was kindled against the sons of Israel (Jacob) and He made them wander in the wilderness forty years, until the entire generation of those who had done evil in the sight of the Lord was destroyed.