This is one of the best explanations of why God allows pain and
suffering that I have seen.
It's an explanation other people will understand.

A man went to a barbershop to have his hair cut and his beard trimmed.
As the barber began to work, they began to have a good conversation.
They talked about so many things and various subjects.
When they eventually touched on the subject of God, the barber said:

"I don't believe that God exists."

"Why do you say that?" asked the customer.

"Well, you just have to go out in the street to realize that God doesn't exist. Tell me, if God exists, would there be so many sick people?
Would there be abandoned children? If God existed, there would
be neither suffering nor pain. I can't imagine a loving a God who would allow all of these things."

The customer thought for a moment, but didn't respond because he didn't want to start an argument. The barber finished his job and the customer left the shop.

Just after he left the barbershop, he saw a man in the
street with long, stringy, dirty hair and an untrimmed beard. He looked dirty and unkempt. The customer turned back and entered the barber shop again and he said to the barber:

"You know what? Barbers don't exist either."

"How can you say that?" asked the surprised barber. "I am here, and I am a barber, and just worked on you!"

"No!" the customer exclaimed. "Barbers don't exist because if they did, there would be no people with dirty long hair and untrimmed beards, like that man outside."

"Ah, but barbers DO exist! What happens is, people do not come to me."

"Exactly!"- affirmed the customer.

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You say: It's impossible
God says: All things are possible (Luke 18:27)

You say: Nobody really loves me
God says: I love you (John 3:16 & John 13:34)

You say: I'm too tired
God says: I will give you rest (Matthew 11:28-30)

You say: I can't go on
God says: My grace is sufficient (II Corinthians 12:9 & Psalms.91:15)

You say: I can't figure things out
God says: I will direct your steps (Proverbs 3:5-6)

You say: I can't do it
God says: You can do all things (Philippians 4:13)

You say: I'm not able
God says: I am able (II Corinthians 9:

You say: It's not worth it
God says: It will be worth it (Romans 8:2

You say: I can't forgive myself
God says: I FORGIVE YOU (I John 1:9 & Romans 8:1)

You say: I can't manage
God says: I will supply all your needs (Philippians 4:19)

You say: I'm afraid
God says: I have not given you a spirit of fear (II Timothy 1:7)

You say: I'm always worried and frustrated
God says: Cast all your cares on ME (I Peter 5:7)

You say: I don't have enough faith
God says: I've given everyone a measure of faith (Romans 12:3)

You say: I'm not smart enough
God says: I give you wisdom (I Corinthians 1:30)

You say: I feel all alone
God says: I will never leave you or forsake you (Hebrews 13:5)