Matthew 19:5

5 and said, For this cause shall a man leave his father and mother, and shall cleave to his wife; and the two shall become one flesh?

Matthew 19:5 In-Context

3 And there came unto him Pharisees, trying him, and saying, Is it lawful [for a man] to put away his wife for every cause?
4 And he answered and said, Have ye not read, that he who made [them] from the beginning made them male and female,
5 and said, For this cause shall a man leave his father and mother, and shall cleave to his wife; and the two shall become one flesh?
6 So that they are no more two, but one flesh. What therefore God hath joined together, let not man put asunder.
7 They say unto him, Why then did Moses command to give a bill of divorcement, and to put [her] away?
The American Standard Version is in the public domain.