Verses with the word espousals in the Old Testament (2 verses):

Canticles 3:11
Go forth, O ye daughters of Zion, and behold king Solomon with the crown wherewith his mother crowned him in the day of his espousals, and in the day of the gladness of his heart.

Jeremiah 2:2
Go and cry in the ears of Jerusalem, saying, Thus saith the LORD; I remember thee, the kindness of thy youth, the love of thine espousals, when thou wentest after me in the wilderness, in a land that was not sown.