Verification required

Hi Hussam30,

Welcome to the Apple (user-to-user) Community.

Re: "I can't download anything on the app store"

For the first time you use the App Store, 

you need a payment method in your Apple ID account, even for free apps.

Check what payment methods Apple can accept in your country or region:

Payment methods that you can use with your Apple ID – Apple Support 

and

How to: Add a payment method to your Apple ID - Apple Support

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Re: "it keeps saying verification is required

when I do it it just goes back and asks the same thing. How do I fix this problem?"

You may want to check you are signed in (to your iPhone) with your Apple ID:

"After you sign in, you can use the App Store, iCloud, iMessage, Apple Music, Apple TV+ and more".

Sign in with your Apple ID - Apple Support

Settings:

You can choose how often you want to enter your password when you buy items (including in-app purchases) from the App Store and iTunes Store

Require a password for App Store and iTunes purchases - Apple Support

Check if settings have a restriction on purchases:

Manage App Store purchases, subscriptions, settings, and restrictions on iPhone – Apple Support

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If needed:

How to: Get apps in the App Store on iPhone – Apple Support

What to do if you still can not downloads apps:

If you can’t download or update apps on your iPhone or iPad - Apple Support

and

App Store Support has a website online.

(There is a "Get Support" link at the bottom)

App Store - Official Apple Support

All the best :-)