'Seven' in the Bible

And the time that David was king in Hebron over the house of Judah was seven years and six months.

In Hebron he reigned over Judah seven years and six months; and in Jerusalem he reigned thirty and three years over all Israel and Judah.

And David took from him a thousand and seven hundred horsemen, and twenty thousand footmen: and David hocked all the chariot horses, but reserved of them for a hundred chariots.

And the Syrians fled before Israel; and David slew of the Syrians the men of'seven hundred chariots, and forty thousand horsemen, and smote Shobach the captain of their host, so that he died there.

let seven men of his sons be delivered unto us, and we will hang them up unto Jehovah in Gibeah of Saul, the chosen of Jehovah. And the king said, I will give them.

And he delivered them into the hands of the Gibeonites, and they hanged them in the mountain before Jehovah, and they fell all'seven together. And they were put to death in the days of harvest, in the first days, at the beginning of barley harvest.

Uriah the Hittite: thirty and seven in all.

So Gad came to David, and told him, and said unto him, Shall seven years of famine come unto thee in thy land? or wilt thou flee three months before thy foes while they pursue thee? or shall there be three days pestilence in thy land? now advise thee, and consider what answer I shall return to him that sent me.