be joined in matrimony
US /biː dʒɔɪnd ɪn ˈmætrɪmoʊni/
UK /biː dʒɔɪnd ɪn ˈmætrɪmoʊni/

1.
to be married; to become husband and wife
:
•
After a long courtship, they were finally joined in matrimony.
•
The couple will be joined in matrimony next spring.