D-D-W
2024 Supporter
Actually we do. Any formal word for word translation will not say "pledged" but "betrothed." That means a signed ketubah.We know that to not be true because Joseph sought to divorce Mary while only pledged to be married to her. That indicates that he was bound to her.
Whether he was bound by legal contract or word of oath we do know. We just know there was some form of 'contract' that bound him to her in marriage that required him to divorce her even though they were only pledged to be married. As I pointed out, a pledge signifies the presence of some kind of contractual obligation to marry her.