a. Christ was naturally good. His will was identical to His Father's will.
b. Christ was "naturally" good. His own will was identical to His Father's will. No inner conflict. This view fails to appreciate reality of Christ's incarnation and temptations as disclosed in Matthew 26:39.
c. Christ's righteousness was not "natural" but by faith. He had to deny His own will in order to follow His Father's will, for His natural will was opposed to His Father's will. John 5:30; 6:38.