The temptations of Christ were not random attempts to trick Him into making a mistake, but were part of a calculated effort to destroy or disqualify Him by any means necessary. From that time on the adversary determined that a direct assault against the Lord Jesus was a pointless waste of time. Why? Because He was so selfless!
You cannot tempt a man who seeks nothing for himself. He wanted nothing and desired nothing but what was given to Him from Above. With Jesus the only option was to destroy Him through the evil intentions of other people. Even in this the Lord Jesus merely passed through crowds who sought to stone Him. He was untouchable and unkillable. Eventually He submitted Himself to betrayal and crucifixion; but even in this He overcame death and rose up in victory. Never before or since has any man so thoroughly routed his enemy. The devil had finally met his match.