Do you think that I cannot appeal to my Father, and he will at once send me more than twelve legions of angels? ~ Matthew 26:53, ESV
These are the word of Christ, just before He was taken captive, the night before He was crucified on the cross.
So how many angels make up twelve legions of angels?
During the time of Christ, a Roman legion was made of us 6,000 Roman soldiers.
So simple math, 6000x12 = 72,000 (seventy-two thousand).
Now to put into perspective the fighting force power of 72,000 angels, take a look at Isaiah 37:36, which records an "angel of the LORD went out and struck down a hundred and eighty-five thousand in the camp of the Assyrians", so if a single angel can take about 185,000 people, that would mean that those 72,000 angels available to protect Christ, would wipe out every human being currently on the planet, almost two-fold.
But, by the end of that night, Jesus had given Himself up to Judas, the betrayer, and a few politicians.
Now there is something to think about.