Matthew 19:12

There are eunuchs who have been eunuchs from their birth, there are eunuchs who have been made eunuchs by men, and there are eunuchs who have made themselves eunuchs for the sake of the Realm of heaven. Let anyone practice it for whom it is practicable."

1 Corinthians 7:32-38

I want you to be free from all anxieties. The unmarried man is anxious about the Lord's affairs, how best to satisfy the Lord;

1 Corinthians 9:5

Have we no right to travel with a Christian wife, like the rest of the apostles, like the brothers of the Lord, like Cephas himself?

1 Corinthians 9:15

Only, I have not availed myself of any of these rights, and I am not writing in order to secure any such provision for myself. I would die sooner than let anyone deprive me of this, my source of pride.

Treasury of Scripture Knowledge

Summary

For there are some eunuchs, which were so born from their mother's womb: and there are some eunuchs, which were made eunuchs of men: and there be eunuchs, which have made themselves eunuchs for the kingdom of heaven's sake. He that is able to receive it, let him receive it.

Bible References

Which have

1 Corinthians 7:32
I want you to be free from all anxieties. The unmarried man is anxious about the Lord's affairs, how best to satisfy the Lord;
1 Corinthians 9:5
Have we no right to travel with a Christian wife, like the rest of the apostles, like the brothers of the Lord, like Cephas himself?