Why is the concept of being perfect important for Christians?

In Genesis 17, God commands Abram to 'be thou perfect.' This command highlights God's standard of holiness and the necessity for His people to reflect His character. However, since no one can attain perfection by their own efforts, Christians find their hope in the righteousness of Christ, which is freely given to those who believe (2 Corinthians 5:21). Therefore, perfection is important as it points us towards our dependency on God's grace and the perfect work of Jesus, who fulfills the law on our behalf.