Do we see how far His authority extended? Now, did He live within it? Did He call for the angels? No, He did not. He lived well within the limits of His authority. What was restraining Him? Look at the next verse.
Do you see what restrained Him? THE WORD OF GOD! And, in this case, the prophecies. That is, the prophecies relative to His death as the Lamb of God. So, we can see that, though Jesus had all power, there were times when He was restrained by the circumstances. But, always He lived well within its limits. So, they fluctuated according to the situation, but always they were subject to the Word of God.