Page 9 may have been thinking about the prophetic words of Psalm 40:6-8
Page 9......must have known that Jesus was righteous
Page 10 found it deeply satisfying to present his body as a sacrifice.
Page 10.....Jehovah's will for Jesus involved preaching the good news of God's Kingdom,
Page 10.....However, Jesus never desired such a future because it was not Jehovah's will for him.
May have, must have, found it deeply satisfying (we know this how), notice the "preaching the good news" expression that they devised. And if the last statement is accurate and carries any weight, wouldn't that mean that Jesus would not desire anything that Jehovah did not will for him, and thereby have an unfair advantage.