'Two' in the Bible

To Eber were born two sons: the name of the one was Peleg, because in his days [the population of] the earth was divided [according to its languages], and his brother’s name was Joktan.

Ashhur, the father of Tekoa, had two wives, Helah and Naarah.

Then all Israel gathered to David at Hebron, saying, “Behold, we are your bone and your flesh.

Of the three in the second [rank] he was the most honored and became their captain; however, he did not attain to the first three [Jashobeam, Eleazar, and Shammah].

Benaiah the son of Jehoiada, the son of a courageous man of Kabzeel who had done great things, killed the two sons of Ariel of Moab. Also he went down and killed a lion in a pit on a snowy day.

On the east were six Levites, on the north four a day, on the south four a day, and two by two at the storehouse.

At the colonnade on the west side [of the outer court of the temple] there were four at the road and two at the colonnade.