"Now it would be as absurd to deny the existence of God, because we cannot see him, as it would be to deny the existence of the air or wind, because we cannot see it"

This quote by Adam Clarke is emphasizing the significance of faith in the existence of God. He is saying that it would be simply as absurd to reject the presence of God due to the fact that we can not see him, as it would be to reject the existence of the air or wind since we can not see it. He is recommending that even if we can not see something does not suggest it does not exist. He is implying that faith is needed to think in the existence of God, just as we have faith in the existence of the air and wind. He is also recommending that we ought to not be so fast to deny the existence of something even if we can not see it. This quote is a tip that faith is an important part of believing in the existence of God, which we must not be so quick to deny something just because we can not see it.