In Hebrews 9:27 we read "We die only once, and then we are judged.".

Simple and concise way of putting an unavoidable fact of life.
Don't believe it? Regardless, you won't find out until the day arrives.
No second chance.
If you don't get it right first time you will spend an eternity of regret (place of weeping and gnashing of teeth Luke 13:28).

I am not looking forward to my day in court.
But God is 'just' and I can walk out free.
God would be 'unjust' if I did not - because Jesus has paid my penalty! Hallelujah!
Jesus died for my sins Romans 4:25.