'Two' in the Bible

And as you saw the iron mixed with common clay, so they will combine with one another in the seed of men; but they will not merge [for such diverse things or ideologies cannot unite], even as iron does not mix with clay.

The first (the Babylonian Empire under Nebuchadnezzar) was like a lion and had the wings of an eagle. I kept looking until its wings were plucked, and it was lifted up from the ground and made to stand on two feet like a man; a human mind was given to it.

He will speak words against the Most High [God] and wear down the saints of the Most High, and he will intend to change the times and the law; and they will be given into his hand for a time, [two] times, and half a time [three and one-half years].

Then I raised my eyes and looked, and behold, there in front of the canal stood a [lone] ram (the Medo-Persian Empire) which had two horns. The two horns were high, but one (Persia) was higher than the other (Media), and the higher one came up last.

He came up to the ram that had the two horns, which I had seen standing in front of the canal, and charged at him in [the fury of] his power and wrath.

[In my vision] I saw him come close to the ram (Medo-Persia), and he was filled with rage toward him; and the goat (Greece) struck the ram and shattered his two horns, and the ram had no strength to stand before him. So the goat threw him to the ground and trampled on him, and there was no one who could rescue the ram from his power.

The ram which you saw with the two horns represents the kings of Media and Persia.

Then I, Daniel, looked, and behold, there stood two others, the one [angel] on this bank of the river and the other [angel] on that bank of the river.