A.w. Tozer said this quote

Because God has been reduced in the minds of people, they do not have that boundless confidence in His character that used to be prominent among Christians. Confidence is necessary to respect. You cannot respect a man in whom you have no confidence. Extend that respect upward to God and if you cannot respect God, you cannot worship Him. You cannot have confidence in Him, because where there is no respect there can be no worship.