How do we know we cannot perfectly keep the law?

The concept of total depravity, as articulated in Reformed theology, establishes that every human is born into sin and unable to achieve the perfect standard set by God's law. Romans 3:23 confirms this, stating that all have sinned and come short of the glory of God. The law serves to highlight our inability to attain righteousness through our efforts, as seen in Paul's reflection on his own struggles with sin in Romans 7:14-25. This realization drives believers to seek grace and righteousness solely through Christ.