Hebrews 10:1-18 is a life-changing passage about the final sacrifice of Jesus Christ and all of its effects on the people of God.
God is at work to root out sin, restore order, and reestablish his kingdom of glory. Learn more from Romans 8.
You cannot understand the grace of God in salvation until you understand the depths of your sin. When you understand the depths of your sin, you see the grace in God's effectual calling.