'Four' in the Bible

So Abimelech and the people with him got up by night, in four bands, to make a surprise attack on Shechem.

For the women to go year by year sorrowing for the daughter of Jephthah the Gileadite, four days in every year.

And his servant-wife was angry with him, and went away from him to her father's house at Beth-lehem-judah, and was there for four months.

And the chiefs of the people, out of all the tribes of Israel, took their places in the meeting of the people of God, four hundred thousand footmen armed with swords.

And the men of Israel, other than Benjamin, were four hundred thousand in number, all armed with swords; they were all men of war.

But six hundred men, turning back, went in flight to the rock of Rimmon in the waste land, and were living on the rock of Rimmon for four months.

Now there were among the people of Jabesh-gilead four hundred young virgins who had never had sex relations with a man; these they took to their tents in Shiloh in the land of Canaan.