'Two' in the Bible

The words of Amos, who was among the herdsmen of Tekoa, which he saw concerning Israel in the days of Uzziah king of Judah, and in the days of Jeroboam the son of Joash king of Israel, two years before the earthquake.

Do two walk together, unless they have agreed?

Thus says Yahweh: "As the shepherd rescues out of the mouth of the lion two legs, or a piece of an ear, so shall the children of Israel be rescued who sit in Samaria on the corner of a couch, and on the silken cushions of a bed."

So two or three cities staggered to one city to drink water, and were not satisfied: yet you haven't returned to me," says Yahweh.