When I was younger I learned that there will be 19 angels guarding the gates of hell. My little brain couldn't imagine such a torturous place, overflowing with evil, with a mere 19 angels guarding it. It seemed like a small arsenal to contain such sheer volumes of evil. My brain wandered. What if the people of hell ganged up on an angel, say 1000 against 1. What would the outcome be? I ran a quick battle between the biggest baddest dudes I could imagine headed by Abu Jahl, against one angel. The bad guys won.
But what I didn't understand back then was the true strength of an angel. Effortlessly, an angel could lift an entire city on the tip of his wing and pile drive it into the ground. The size of an angel is beyond comprehension. His presence would simply engulf you. For the distance between an angel's ear-lobes and his shoulders is equivalent to a seven-hundred year journey.
The question becomes. if angels are so mighty, Why 19? In reply, the Quran states, "We have not made their number but as a trial for those who disbelieve." Surat Al Mudathir Simply put, it is God's Will. "Praise be to God, Who created the heavens and the earth, Who created the angel messengers with wings - two, or three, or four (pairs) and adds to His Creation as He pleases: for God has power over all things." Surat Fatir