God uses many Jewish traditional customs as teaching tools. The ancient Jewish Wedding Custom is one of those teaching tools. This traditional Jewish custom definitely is a detailed illustration of the Messiah’s (the Bridegroom’s) marriage to His Bride.
Believers (Bride) ONLY are faithful to the Lord when they are loyal to their wedding vows. Entering into a marriage contract with the Lord without seriously counting up the cost could mean that this person, or persons, might end up in a hasty divorce that has eternal implications!