10:7 the book. The book of God had been written in heaven long before it was transmitted to men on earth, and this certainly included God’s great plan of redemption. Note Psalm 119:89; 139:16; then also I Peter 1:18-20; Revelation 13:8.

10:7 thy will. The Lord Jesus Christ frequently confirmed the fact that He had come into the world specifically to do the will of His Father (e.g., John 4:34; 5:30; 6:38).