1 Peter 1:23 NIV
For you have been born again, not of perishable seed, but of imperishable, through the living and enduring word of God.
People that have decided to give their life to Christ and live by the word of God are supposed to be transformed. Believers and followers of Christ are not bound by the ways of the flesh. The flesh is never completely satisfied, it ages and spoils over time, and doesn’t last forever. This indicates that people living by the flesh have a foundation that will transform and not last forever. Seeds change thru different states until they reach their final stage in the life cycle. On the flip side, an imperishable seed means that the seed won’t ever change, won’t spoil, and will last forever. So, a person that is now grounded in the word of God will have a foundation that won’t transform overtime. God’s word doesn’t change and living for him leads you to be spirit led. Living according to the spirit will lead to eternal life with God. A spirit doesn’t have an end and isn’t limited by fleshly principles.