"Simul justus et peccator."

The following is a repost of an episode aired on "Christendom and the World". See the link below. In this episode, the Rev. Schlies sit down with Rev. Andrew Preus to discuss the cliche "Simul justus et peccator". What does it mean to be simultaneously justified and yet a sinner?

https://christiannewsmo.libsyn.com/the-schlie-brothers-digging-deeper-than-the-clichs-round-4