Marie asked:
I have a question on how to do with a potential question when witnessing. What if someone asks you, "Well, if it is up to God to regenerate my heart and open my eyes to the Gospel, then why is He not doing it? Awfully unfair of Him, don't you think" Should we given them John 3:8 as an answer?
Ask him/her sincerely.."would you like for God to regenerate your heart and open your eyes to the gospel?"

If his answer is Yes!..give him John 6:37 "All that the Father giveth me shall come to me: and him that cometh to me I will in no wise cast out."

If his answer is No!..he has answered his own question.