I have attended bible study for more than 10 years but still struggle to find out if there are proof that the God described in bible is lenient to human beings.

Right now in this world there are hell and paradise. Many people in this world are living in terrible condition equivalent of hell.

If you don't believe it, bring a christian to one of this place in the world say, Africa and ask what she/he wants, I guess the answer would be, get the hell out of there :-)