A rescue mission nicknamed “Operation Noah’s Ark” might sound fun for animal lovers, but it was a nightmare for the Nassau Society for the Prevention of Cruelty to Animals. After receiving complaints about the noise and the horrid stench coming from a certain house, workers entered the Long Island home and found and removed more than four hundred animals from the neglected conditions.

We may not be holding hundreds of animals in filthy conditions, but Jesus said we might be harboring evil and sinful thoughts and actions in our hearts that need to be exposed and removed.

In teaching His disciples about what makes a person clean and unclean, Jesus said it isn’t dirty hands or “whatever enters the mouth” that defiles a person, but an evil heart (Matthew 15:17–19). The stench from our hearts would eventually leak out from their lives. Then Jesus gave examples of evil thoughts and actions that come “out of the heart” (v. 19). No amount of external religious activities and rituals can make them clean. We need God to transform our hearts.

We can practice Jesus’ inside-out ethic by giving Him access to the squalor of our hearts and letting Him remove what’s causing the stench. As Christ uncovers what’s coming from our hearts, He’ll help our words and actions be aligned with His desires, and the aroma from our lives will please Him.