WHY DID YESHUA NEED TO DIE ON THE TREE TO REDEEM HIS ADULTEROUS WIFE ?

Deuteronomy 24:1 When a man has taken a wife, and married her, and it come to pass that she find no favour in his eyes, because he has found some uncleanness in her: then let him write her a bill of divorcement, and give it in her hand, and send her out of his house.

Deuteronomy 24:2 And when she is departed out of his house, she may go and be another man's wife.