Matthew 19:3-9

Some Pharisees came to Him, [attempting] to put Him to a test. They said, "Is it permissible by the law of Moses for a man to divorce his wife for any reason [he chooses]?"

1 Corinthians 6:16-17

Or, do you not know that the person who is joined to a prostitute is one body [with her, physically]? For God says [Gen. 2:24], "The two will become one flesh" [i.e., united in such a close relationship as to practically constitute one body].

Mark 10:6-12

But from the beginning of creation God made mankind male and female.

1 Corinthians 7:10-11

Now I command married people, although it is [really] the Lord's command [See. Mark 10:2-12]: A wife should not separate from her husband. [Note: This act implies the intention of pursuing a legal and permanent breach of the marriage relationship by divorce. "Separate" and "divorce" appear to be used interchangeably in this section. See verses 11-15].

Ephesians 5:28-31

In the same way also, husbands should love their own wives as they love their own bodies. The man who loves his own wife [actually] loves himself.

1 Peter 3:1-7

In the same way [that Jesus was submissive], you wives should submit yourselves to your own husbands so that, even though they may not obey the [Gospel] message [they have heard] they may, without your talking [to them about it],

1 Corinthians 7:2-4

But, because of so much sexual immorality, each man should have his own wife and each woman her own husband.

Acts 11:23

When he got there and saw how God was favoring the people [with salvation] he was very happy and [stayed on and] encouraged everyone to remain close to the Lord with a heartfelt purpose.

Romans 7:2

For a married woman is legally bound to her husband for as long as he lives. But, when he dies, she is released from the marriage contract.

1 Timothy 5:14

Therefore, I want the younger widows to get married, have children and manage their homes, so that they do not give the enemy [i.e., non-Christians] an opportunity for speaking against [the church].

Treasury of Scripture Knowledge

Summary

Therefore shall a man leave his father and his mother, and shall cleave unto his wife: and they shall be one flesh.

General references

Bible References

And they shall be one flesh

Matthew 19:3
Some Pharisees came to Him, [attempting] to put Him to a test. They said, "Is it permissible by the law of Moses for a man to divorce his wife for any reason [he chooses]?"
Mark 10:6
But from the beginning of creation God made mankind male and female.
Romans 7:2
For a married woman is legally bound to her husband for as long as he lives. But, when he dies, she is released from the marriage contract.
1 Corinthians 6:16
Or, do you not know that the person who is joined to a prostitute is one body [with her, physically]? For God says [Gen. 2:24], "The two will become one flesh" [i.e., united in such a close relationship as to practically constitute one body].
1 Corinthians 7:2
But, because of so much sexual immorality, each man should have his own wife and each woman her own husband.
Ephesians 5:28
In the same way also, husbands should love their own wives as they love their own bodies. The man who loves his own wife [actually] loves himself.
1 Timothy 5:14
Therefore, I want the younger widows to get married, have children and manage their homes, so that they do not give the enemy [i.e., non-Christians] an opportunity for speaking against [the church].
1 Peter 3:1
In the same way [that Jesus was submissive], you wives should submit yourselves to your own husbands so that, even though they may not obey the [Gospel] message [they have heard] they may, without your talking [to them about it],

General references

Mark 10:7
For this reason [i.e., since he made one woman for one man] a man will leave [the home of] his father and mother and will cling to his wife
Ephesians 5:31
[Gen. 2:24 says], "For this reason a man will leave [the home of] his father and mother, and will cling to his wife, [so that] the two will become one flesh [i.e., united in such a close relationship, as to practically constitute one body]."