'Seven' in the Bible

Then Nebuchadnezzar was filled with wrath, and his facial expression was altered toward Shadrach, Meshach and Abed-nego. He answered by giving orders to heat the furnace seven times more than it was usually heated.

“Let his mind be changed from that of a manAnd let a beast’s mind be given to him,And let seven periods of time pass over him.

In that the king saw an angelic watcher, a holy one, descending from heaven and saying, “Chop down the tree and destroy it; yet leave the stump with its roots in the ground, but with a band of iron and bronze around it in the new grass of the field, and let him be drenched with the dew of heaven, and let him share with the beasts of the field until seven periods of time pass over him,”

that you be driven away from mankind and your dwelling place be with the beasts of the field, and you be given grass to eat like cattle and be drenched with the dew of heaven; and seven periods of time will pass over you, until you recognize that the Most High is ruler over the realm of mankind and bestows it on whomever He wishes.

and you will be driven away from mankind, and your dwelling place will be with the beasts of the field. You will be given grass to eat like cattle, and seven periods of time will pass over you until you recognize that the Most High is ruler over the realm of mankind and bestows it on whomever He wishes.’

So you are to know and discern that from the issuing of a decree to restore and rebuild Jerusalem until Messiah the Prince there will be seven weeks and sixty-two weeks; it will be built again, with plaza and moat, even in times of distress.