How do we know coveting is a sin?

Coveting is a sin as clearly articulated by the Tenth Commandment in Exodus 20:17, which tells us not to desire anything that belongs to our neighbor. Additionally, Jesus emphasizes the importance of our heart's motivations in Matthew 15:18-19, where He states that evil thoughts and desires defile a person. The Apostle Paul confirms this in Romans 7:7, where he mentions that he did not know sin until the law revealed it to him. Thus, through Scriptural teaching, we see that coveting is not just an innocent desire but is rooted in a sinful state of the heart that leads to further sin.