'Imperishable' in the Bible

But this I tell you, brethren: our mortal bodies cannot inherit the Kingdom of God, nor will what is perishable inherit what is imperishable.

For so it must be: this perishable nature must clothe itself with what is imperishable, and this mortality must clothe itself with immortality.

But when this perishable nature has put on what is imperishable, and this mortality has put on immortality, then will the words of Scripture be fulfilled, "Death has been swallowed up in victory."