An extr'ordinary focus on what he believes,And life-long betroth to his creed.
From the latimes.com
At that point an angel told Zachariah to betroth Mary to a widower in Israel, who would be indicated.
From the en.wikipedia.org
Within two years, war was declared against France and the Emperor was once again welcome in England, where plans were afoot to betroth him to Catherine's daughter Mary.
From the en.wikipedia.org
More examples
Give to in marriage
Betrothal (also called espousal) is a formal state of engagement to be married.
To promise to wed. A phonetic variation of "by truth". See also "troth" and "plight"