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

Jeremiah 3:1 They say, If a man put away his wife, and she go from him, and become another man's, shall he return unto her again?

shall not that land be greatly polluted?

but you have played the harlot with many lovers; yet return again to me, says the LORD.