Why is it significant that God demands a distinction between the holy and the profane?

In Ezekiel 22:26, God admonishes the priests for failing to teach the people the difference between the holy and the profane. This distinction is not only foundational to Israel's worship but also crucial for understanding God's nature. Holiness defines God, and His commands reflect His character. For Christians, this distinction remains essential as we are called to be set apart, pursuing righteousness and living in a way that honors God. It underscores the seriousness of sin and God's desire for His people to maintain purity in worship and life.