Even as Christ, we have received the same commandment from our Father. Jesus set the perfect pattern in this, and this is what the New Testament teaches all of His followers. This, incidentally, is exactly what the Old Testament also teaches. His death was wholly voluntary, yet at the same time completely and totally in accord with the Father's will.
Briefly, then, He suffered and died because He willed to do it. He did it to show that He was in agreement with the Father's purpose. Therefore, the whole plan that Jesus carried out was motivated by His love for the Father.
The word translated "power" means that He was not a helpless victim. He had both the right and the power to become the instrument of reconciliation between men and God, and that is the course He took. He set His will to accomplish it. Jesus saw His whole life as an act of obedience to God: His Father had given Him a task to do, and He was prepared to spend His life to complete it, even if it cost Him His life'and it did.
John W. Ritenbaugh
Preparing to Be a Priest
When Jesus came in the flesh, He emphasized that He had been sent by the Father, and that His authority, offices, purposes, plans, and power were received from Him. All this was done with Jesus' complete acceptance and agreement (Philippians 2:5-8); He did not come reluctantly but with purpose and zeal. As the Great Shepherd, He sacrificed Himself, rose from the grave, and ascended to heaven, where He now intercedes for His sheep (Hebrews 7:25; 10:5-10; 13:20-21). Both the Father and His Son are one in Their love for the sheep, and so the Son came to seek and to save those who were lost.
Martin G. Collins
Parable of the Good Shepherd (Part One)