The basic idea of “ransom” is a price that covers (as in payment for damages or to satisfy justice), while “redemption” emphasizes the releasing accomplished as a result of the ransom paid. The most significant ransom price is the shed blood of Jesus Christ, which made deliverance from sin and death possible for the offspring of Adam.

In the various Hebrew and Greek terms translated “ransom” and “redeem,” the inherent similarity lies in the idea of a price, or thing of value, given to effect the ransom, or redemption. The thought of exchange, as well as that of correspondency, equivalence, or substitution, is common in all. That is, one thing is given for another, satisfying the demands of justice and resulting in a balancing of matters.​—See RECONCILIATION.

A Price That Covers. The Hebrew noun koʹpher comes from the verb ka·pharʹ, meaning, basically, “cover,” as in Noah’s covering the ark with tar. (Ge 6:14) Ka·pharʹ, however, is used almost entirely to describe the satisfying of justice through the covering of or atoning for sins. The noun koʹpher refers to the thing given to accomplish this, the ransom price. (Ps 65:3; 78:38; 79:8, 9) A covering corresponds to the thing it covers, either in its form (as in a material lid, such as the “cover [kap·poʹreth]” of the ark of the covenant; Ex 25:17-22), or in its value (as in a payment to cover the damages caused by an injury).

As a means for balancing justice and setting matters straight with his people Israel, Jehovah, in the Law covenant, designated various sacrifices and offerings to atone for, or cover, sins, including those of the priests and the Levites (Ex 29:33-37; Le 16:6, 11), of other individuals, or of the nation as a whole (Le 1:4; 4:20, 26, 31, 35), as well as to purify the altar and tabernacle, making atonement because of the sins of the people surrounding these. (Le 16:16-20) In effect, the life of the animal sacrificed went in place of the life of the sinner, its blood making atonement on God’s altar, that is, to the extent that it could. (Le 17:11; compare Heb 9:13, 14; 10:1-4.) The “day of atonement [yohm hak·kip·pu·rimʹ]” could just as properly be referred to as the “day of the ransoms.” (Le 23:26-28) These sacrifices were required if the nation and its worship were to have and maintain the acceptance and approval of the righteous God.

Well illustrating the sense of a redeeming exchange is the law regarding a bull known to gore. If the owner allowed the bull to go loose so that it killed someone, the owner was to be put to death, paying for the life of the slain person with his own life. However, since he did not deliberately or directly kill another, if the judges viewed it proper to impose upon him a “ransom [koʹpher]” instead, then he must pay that redemption price. The sum assessed and paid was viewed as taking the place of his own life and compensating for the life lost. (Ex 21:28-32; compare De 19:21.) On the other hand, no ransom could be accepted for the deliberate murderer; only his own life could cover the death of the victim. (Nu 35:31-33) Evidently because a census involved lives, at the time such was taken each male over 20 had to have a ransom (koʹpher) of half a shekel ($1.10) given for his soul to Jehovah, the same price applying whether the individual was rich or poor.​—Ex 30:11-16.

Since any imbalance of justice is displeasing to God, as well as among humans, the ransom, or covering, could have the additional effect of averting or quelling anger. (Compare Jer 18:23; also Ge 32:20, where “appease” translates ka·pharʹ.) The husband enraged at the man committing adultery with his wife, however, refuses any “ransom [koʹpher].” (Pr 6:35) The term may also be used with regard to those who should execute justice but who instead accept a bribe or gift as “hush money [koʹpher]” to cover over the wrongdoing in their sight.​—1Sa 12:3; Am 5:12.

The Redemption, or Releasing. The Hebrew verb pa·dhahʹ means “redeem,” and the related noun pidh·yohnʹ means “redemption price.” (Ex 21:30) These terms evidently emphasize the releasing accomplished by the redemption price, while ka·pharʹ places stress on the quality or content of the price and its efficacy in balancing the scales of justice.

Christ Jesus’ Role as Ransomer. The foregoing information lays the basis for understanding the ransom provided for humankind through God’s Son, Christ Jesus. Mankind’s need for a ransom came about through the rebellion in Eden. Adam sold himself to do evil for the selfish pleasure of keeping continued company with his wife, now a sinful transgressor, so he shared the same condemned standing with her before God. He thereby sold himself and his descendants into slavery to sin and to death, the price that God’s justice required. (Ro 5:12-19; compare Ro 7:14-25.) Having possessed human perfection, Adam lost this valuable possession for himself and all his offspring.

The Law, which had “a shadow of the good things to come,” provided for animal sacrifices as a covering for sin. This, however, was only a symbolic or token covering, since such animals were inferior to man; hence, it was “not possible for the blood of bulls and of goats [actually] to take sins away,” as the apostle points out. (Heb 10:1-4) Those pictorial animal sacrifices had to be without blemish, perfect specimens. (Le 22:21) The real ransom sacrifice, a human actually capable of removing sins, must therefore also be perfect, free from blemish. He would have to correspond to the perfect Adam and possess human perfection, if he were to pay the price of redemption that would release Adam’s offspring from the debt, disability, and enslavement into which their first father Adam had sold them. (Compare Ro 7:14; Ps 51:5.) Only thereby could he satisfy God’s perfect justice that requires like for like, a ‘soul for a soul.’​—Ex 21:23-25; De 19:21.

The strictness of God’s justice made it impossible for mankind itself to provide its own redeemer. (Ps 49:6-9)