en_tn/1co/15/53.md

imperishable ... this perishable body ... is imperishable

"in a form that cannot rot ... this body that can rot ... cannot rot." See how similar phrases are translated in 1 Corinthians 15:42.

must put on

Paul is speaking of God making our bodies so they will never die again as if God were putting new clothes on us. (See: rc://en/ta/man/translate/figs-metaphor)