Two
The number "two" has two different meanings in the Bible. In most cases "two" indicates a joining together or unification. This is easy to see if we consider the conflicts we tend to have between our "hearts" and our "heads" -- between what we want and what we know. Our "hearts" tell us that we want pie with ice cream for dinner; our "heads" tell us we should have grilled chicken and salad. If we can bring those two together and actually want what's good for us, we'll be pretty happy. We're built that way -- with our emotions balanced against our intellect -- because the Lord is built that way. His essence is love itself, or Divine Love, the source of all caring, emotion and energy. It is expressed as Divine Wisdom, which gives form to that love and puts it to work, and is the source of all knowledge and reasoning. In His case the two aspects are always in conjunction, always in harmony. It's easy also to see how that duality is reflected throughout creation: plants and animals, food and drink, silver and gold. Most importantly, it's reflected in the two genders, with women representing love and men representing wisdom. That's the underlying reason why conjunction in marriage is such a holy thing. So when "two" is used in the Bible to indicate some sort of pairing or unity, it means a joining together. In rare cases, however, "two" is used more purely as a number. In these cases it stands for a profane or unholy state that comes before a holy one. This is because "three" represents a state of holiness and completion (Jesus, for instance, rose from the tomb on the third day), and "two" represents the state just before it.
Genesis 11:1-9
1
The whole earth was of one language and of one speech.
2
It happened, as they traveled east, that they found a plain in the land of Shinar, and they lived there.
3
They said one to another, "Come, let's make bricks, and burn them thoroughly." They had brick for stone, and they used tar for mortar.
4
They said, "Come, let's build ourselves a city, and a tower whose top reaches to the sky, and let's make ourselves a name, lest we be scattered abroad on the surface of the whole earth."
5
Yahweh came down to see the city and the tower, which the children of men built.
6
Yahweh said, "Behold, they are one people, and they have all one language, and this is what they begin to do. Now nothing will be withheld from them, which they intend to do.
7
Come, let's go down, and there confuse their language, that they may not understand one another's speech."
8
So Yahweh scattered them abroad from there on the surface of all the earth. They stopped building the city.
9
Therefore its name was called Babel, because there Yahweh confused the language of all the earth. From there, Yahweh scattered them abroad on the surface of all the earth.
