The penalty for sin was paid by Jesus, when he died on the cross.  For those who follow him, there will be no judgement when he returns.

so Christ also, having been offered once to bear the sins of many, will appear a second time for salvation without reference to sin, to those who eagerly await Him.
Hebrews 9:28 NASB

https://bible.com/bible/100/heb.9.28.nasb