The word 'cleave' is it's own antonym. (A 'contronym'.)
You can 'cleave something in two'. (As in a 'kitchen cleaver'.)
And you can 'cleave two things together'. (As in "Therefore a man leaves his father and his mother and cleaves to his wife, and they become one flesh.")
Just for fun, I'll point this out...
The word 'cleave' is it's own antonym. (A 'contronym'.)
You can 'cleave something in two'. (As in a 'kitchen cleaver'.)
And you can 'cleave two things together'. (As in "Therefore a man leaves his father and his mother and cleaves to his wife, and they become one flesh.")