If you ever read through Leviticus and Numbers you'll probably have many of these moments.
One such instance is the abrupt mention of testes in the twenty-second chapter of Leviticus. At first glance it seems bizarre and not important, but though it may not seem to apply to 21st Century Christians, I assure you that the principle behind it will never be irrelevant.
Sacrifice Is Still Relevant
The verse in question relates to Jewish practice of animal sacrifice. God gave Moses guidelines for beasts that are unacceptable as an offering:
You must not offer to the Lord an animal whose testicles are bruised, crushed, torn or cut. Leviticus 22:24
Who said the Bible was lacking in imagery? This is one of
many Mosaic regulations
for sacrifice.
But I know what you’re thinking. We don’t sacrifice animals. How is this relevant?