Question 1: Why doesn’t God reveal himself more clearly?

James 2:19 (NIV)

You believe that there is one God. Good! Even the demons believe that—and shudder.

Jeremiah 29:13 (NIV)

You will seek me and find me when you seek me with all your heart.

Question 2: If Christianity is true, why aren’t Christians better advertisements?

Ephesians 4:1 (NIV)

…I urge you to live a life worthy of the calling you have received.

Question 3: If God is loving and all powerful, why is there so much evil and suffering and pain in the world?

Mark15:3 (NIV)

And at three in the afternoon Jesus cried out in a loud voice, “Eloi, Eloi, lema sabachthani?” (which means “My God, my God, why have you forsaken me?”). (b)

Isaiah 53:6 (NIV)

“We all, like sheep, have gone astray,
    each of us has turned to our own way;
and the Lord has laid on him
    the iniquity of us all.”

John 20:21,22 (NIV)

After he said this, he showed them his hands and side. The disciples were overjoyed when they saw the Lord. 21 Again Jesus said, “Peace be with you! As the Father has sent me, I am sending you.”

NIV footnote

(b) Psalm 22:1