I am not a scholar, rosends, but I have some understanding of Leviticus, and redemption, and by whom. It is pretty much laid out:
Leviticus 25:25-28
If a fellow countryman of yours becomes so poor he has to sell part of his property, then his nearest kinsman is to come and buy back what his relative has sold. Or in case a man has no kinsman, but so recovers his means as to find sufficient for its redemption, then he shall calculate the years since its sale and refund the balance to the man to whom he sold it, and so return to his property. But if he has not found sufficient means to get it back for himself, then what he has sold shall remain in the hands of its purchaser until the year of jubilee; but at the jubilee it shall revert, that he may return to his property.
Galatians gives us the reason why Jesus was born of a woman, and under the Law and the result:
Galatians 4:4-7
But when the fullness of the time came, God sent forth His Son, born of a woman, born under the Law, so that He might redeem those who were under the Law, that we might receive the adoption as sons. Because you are sons, God has sent forth the Spirit of His Son into our hearts, crying, “Abba! Father!”.
Therefore, you are no longer a slave, but a son; and if a son, then an heir through God.
Jesus is our Redeemer...