Why did Jesus have to die?

¹There is therefore now no condemnation to them which are in Christ Jesus, who walk not after the flesh, but after the Spirit. ²For the law of the Spirit of life in Christ Jesus hath made me free from the law of sin and death. ³For what the law could not do, in that it was weak through the flesh, God sending his own Son in the likeness of sinful flesh, and for sin, condemned sin in the flesh: ⁴That the righteousness of the law might be fulfilled in us, who walk not after the flesh, but after the Spirit.

²¹For even hereunto were ye called: because Christ also suffered for us, leaving us an example, that ye should follow his steps: ²²Who did no sin, neither was guile found in his mouth: ²³Who, when he was reviled, reviled not again; when he suffered, he threatened not; but committed himself to him that judgeth righteously: ²⁴Who his own self bare our sins in his own body on the tree, that we, being dead to sins, should live unto righteousness: by whose stripes ye were healed. ²⁵For ye were as sheep going astray; but are now returned unto the Shepherd and Bishop of your souls.