Matthew 19:10

The disciples said to him, If the case of a man is thus with his wife, it is not expedient to marry.

1 Corinthians 7:1-2

CONCERNING what you wrote to me, it is good for a man not to touch a woman;

1 Corinthians 7:8

And I say to the unmarried and to the widows, that it is good for them to continue as I am;

1 Corinthians 7:26-28

I think then that this is good on account of the present necessity, because it is good for man to be so.

1 Corinthians 7:32-35

But I wish you to be without cares. The unmarried man cares for the things of the Lord, how he shall please the Lord;

1 Corinthians 7:39-40

A woman is bound as long as her husband lives; but if her husband is dead then she is free to be married to whom she will; only in the Lord.

1 Timothy 4:3

who forbid to marry, [command] to abstain from meat, which God created to be received with thanksgiving by the faithful and those who know the truth.

1 Timothy 5:11-15

But reject the younger widows; for when they fall into pleasure to the neglect of Christ, they wish to marry,

Treasury of Scripture Knowledge

Summary

His disciples say unto him, If the case of the man be so with his wife, it is not good to marry.

Bible References

General references

1 Corinthians 7:1
CONCERNING what you wrote to me, it is good for a man not to touch a woman;
1 Timothy 4:3
who forbid to marry, [command] to abstain from meat, which God created to be received with thanksgiving by the faithful and those who know the truth.
1 Timothy 5:11
But reject the younger widows; for when they fall into pleasure to the neglect of Christ, they wish to marry,