Matthew 19:12

For there are eunuchs, who were so from their mothers' womb; and there are eunuchs, who have been made eunuchs by men; and there are eunuchs, who have made themselves eunuchs for the kingdom of heaven. He that is capable of receiving, let him receive it.

1 Corinthians 7:32-38

But I would have you to be free from anxiety. He who is unmarried is anxious for the things of the Lord, how he shall please the Lord:

1 Corinthians 9:5

Have we not power to carry about with us a sister wife, as do also the other apostles, even the brethren of the Lord, and Cephas?

1 Corinthians 9:15

But I have used nothing of these things, nor have I written indeed these things, that it should be so done respecting me; for it would become me to die rather than that any man should make my glorying void.

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
But I would have you to be free from anxiety. He who is unmarried is anxious for the things of the Lord, how he shall please the Lord:
1 Corinthians 9:5
Have we not power to carry about with us a sister wife, as do also the other apostles, even the brethren of the Lord, and Cephas?