Meaning of the word "blood will have blood" in English

What does "blood will have blood" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

blood will have blood

US /blʌd wɪl hæv blʌd/
UK /blʌd wɪl hæv blʌd/
"blood will have blood" picture

Idiom

violence or murder will inevitably lead to more violence or murder in return

Example:
The cycle of revenge continues in the region, proving that blood will have blood.
In Shakespeare's Macbeth, the protagonist realizes that blood will have blood after his crimes.