Good morning! It can be difficult trying to witness to people. They try to use their natural self to understand the supernatural God of all creation and it's impossible. The things of God are beyond our natural comprehension to understand.
It seems foolish to think Jesus came to die for all of humanity. But when you ask God to open up your understanding, your spiritual part of you comes alive to enlighten you to receive the Gospel.
Even when you receive the message, continue to ask God to enlighten your understanding to deepen your relationship with Christ. Receive in your spirit what your mind cannot fathom. You will learn everyday how to make a great day!