The Ransom is Jehovahs greatest gift to mankind.It makes possible our deliverance from sin and death.(Ephesians 1;7) It is the foundation of the hope of everlasting life whether in heaven or in a paradise earth.The ransom became necessary because of the sin of Adam.Adam, passed on to his offspring a legacy of sickness,sorrow,pain,and death.A ransom is defined as something paid to buy something back. In the Hebrew scriptures the word for ransom (ko pher) comes from a verb meaning to cover, this helps me appreciate that to ransom also means to cover.In order to ransom or cover sin,a price must be paid that fully corresponds to or fully covers the damage caused by sin.So the ransom had to involve the death of the exact equal of Adam.(a perfect human). Someone not under adamic death sentence,could offer a corresponding ransom, one corresponding perfectly to Adam.(1 timothy 2;6)Through one man (Adam) sin entered into the world and death through sin.(romans 5;12) and since death is through aman, God provided for the redemtion of mankind through a man.(Jesus)(1 corinthians 15; 21)Jehovah arranged to have a perfect man voluntarily sacrifice his life. As a man, he would be called Jesus, but in a legal sense,he could be called the second Adam, for he corresponded perfectly to Adam.(1 corinthians 15; 45 and 47)so with out the sin of Adam there would be no need for the ransom sacrifice of Jesus