'Two' in the Bible

For he is our peace, who has made the two into one, and by whom the middle wall of division has been broken down,

Having in his flesh put an end to that which made the division between us, even the law with its rules and orders, so that he might make in himself, of the two, one new man, so making peace;

And that the two might come into agreement with God in one body through the cross, so putting an end to that division.

Because through him the two of us are able to come near in one Spirit to the Father.

For this cause will a man go away from his father and mother and be joined to his wife, and the two will become one flesh.