Matthew 19:10

"If that," said the disciples, "is the position of a man with regard to his wife, it is better not to marry."

1 Corinthians 7:1-2

With reference to the subjects about which you wrote to me: It would be well for a man to remain single.

1 Corinthians 7:8

My advice, then, to those who are not married, and to widows, is this: It would be well for them to remain as I am myself.

1 Corinthians 7:26-28

I think, then, that, in view of the time of suffering that has now come upon us, what I have already said is best-that a man should remain as he is.

1 Corinthians 7:32-35

I want you to be free from anxiety. The unmarried man is anxious about the Master's Cause, desiring to please him;

1 Corinthians 7:39-40

A wife is bound to her husband as long as he lives; but, if the husband should pass to his rest, the widow is free to marry any one she wishes, provided he is a believer.

1 Timothy 4:3

and they discourage marriage and enjoin abstinence from certain kinds of food; though God created these foods to be enjoyed thankfully by those who hold the Faith and have attained a full knowledge of the Truth.

1 Timothy 5:11-15

But you should exclude the younger widows from the list; for, when they grow restive under the yoke of the 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
With reference to the subjects about which you wrote to me: It would be well for a man to remain single.
1 Timothy 4:3
and they discourage marriage and enjoin abstinence from certain kinds of food; though God created these foods to be enjoyed thankfully by those who hold the Faith and have attained a full knowledge of the Truth.
1 Timothy 5:11
But you should exclude the younger widows from the list; for, when they grow restive under the yoke of the Christ, they want to marry,