Matthew 19:10

The disciples said to Him, "If that is a man's relation to his wife, there is no advantage in getting married."

1 Corinthians 7:1-2

Now I take up the matters about which you wrote me. It may be good thing for a man to remain unmarried;

1 Corinthians 7:8

To unmarried people and to widows I would say this: It would be a fine thing for them to remain single, as I am.

1 Corinthians 7:26-28

Now this is my opinion in the light of the present distress: That it is a good thing for a man to remain as he is.

1 Corinthians 7:32-35

I want you to be free from worldly worries. An unmarried man is concerned about the affairs of the Lord.

1 Corinthians 7:39-40

A wife is bound to her husband as long as he lives. If her husband dies, she is free to marry anyone she pleases, except that he must be a Christian.

1 Timothy 4:3

who forbid people to marry and teach them to abstain from certain sorts of food which God created for the grateful enjoyment of those who have faith and a clear knowledge of the truth.

1 Timothy 5:11-15

Keep the young widows off this roll, for when they get to indulging their lower nature in opposition to Christ, they want 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
Now I take up the matters about which you wrote me. It may be good thing for a man to remain unmarried;
1 Timothy 4:3
who forbid people to marry and teach them to abstain from certain sorts of food which God created for the grateful enjoyment of those who have faith and a clear knowledge of the truth.
1 Timothy 5:11
Keep the young widows off this roll, for when they get to indulging their lower nature in opposition to Christ, they want to marry,