Matthew 19:12

as there are some eunuchs, who were such from their very birth: and others who were made such by men: so there are some who have made themselves eunuchs for the sake of religion. he that can bear the state of celibacy, let him bear it.

1 Corinthians 7:32-38

the unmarried is religiously concerned, how he may please the Lord:

1 Corinthians 9:5

have not we the liberty to take a christian woman with us in our travels, as well as the rest of the apostles, as the brothers of the Lord, and Cephas did?

1 Corinthians 9:15

but I have not made use of these advantages. neither have I writ this to obtain such maintenance: for I had rather die for want, than be deprived of such matter of glorying.

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
the unmarried is religiously concerned, how he may please the Lord:
1 Corinthians 9:5
have not we the liberty to take a christian woman with us in our travels, as well as the rest of the apostles, as the brothers of the Lord, and Cephas did?