Matthew 19

4 And he answering said to them, ‘Did ye not read, that He who made [them], from the beginning a male and a female made them,

5 and said, For this cause shall a man leave father and mother, and cleave to his wife, and they shall be — the two — for one flesh?

6 so that they are no more two, but one flesh; what therefore God did join together, let no man put asunder.’