According to Hinduism, Ravi is Surya, the Sun. He is one of the Adityas. By this practice, Sunday is known as Ravivar in India. In Kerala, Sunday is called as Njayar, again a synonym for "sun".
So you theists need to explain why a god who is good (in your sense of 'good') would allow so much apparently pointless evil (in your sense of 'evil').
First, the atheist may believe that the probability of Zacharias's view of God actually existing is so small that she does not worry about it, even if she is inclined to take some other view of God seriously.
To many nontheists, the idea of "deciding" to believe in God is simply no more of a live option than "deciding" to believe that the earth is flat.