'Two' in the Bible

Or do you not see that he who is joined to a loose woman is one body with her? for God has said, The two of them will become one flesh.

If any man makes use of a tongue, let it not be more than two, or at the most three, and in turn; and let someone give the sense:

And let the prophets give their words, but not more than two or three, and let the others be judges of what they say.