God knows nobody on earth REALLY doubts HIS existence

God goes by what people do (not by what they say). God sees people joyfully making use of His provisions made on this earth for life’s sustenance and enjoyment, thus revealing they do depend on God and in His provisions THROUGH THEIR ACTION.

Because of freewill, anyone is free to claim these provisions came here because chemicals felt the need of feeding humans hence formed themselves into such provisions. Such people are not to be corrected as they provide free lesson for others on what to avoid to better enjoy life who are already enjoying life because they see His provisions such as food-producing trees are also spiritual guidance on what to adopt in life to better enjoy life. Trees give too valuable things to society yet take only wastes from society, thus teach us lofty qualities such as benevolence, truthfulness, trustworthiness, beauty, peace [as it does its work silently], softness and sweetness [seen in their fruits]. The spirituality which trees manifest can only be envied by humans (psychologytoday com/what-we-can-learn-trees). Ten Commandments from trees are simple yet of high standard. (davidsuzuki org/living-green/ten-inspiring-lessons-from-trees)

Hence God’s role is only to renew earth and its provisions when they are polluted and made unlivable by humans through their short-sighted technology and global wars. God has done many times in the past and will do so in the future too (Details here https://www.reddit.com/r/theology/comments/1qlbimh/creation_is_not_gods_first_act_nor_book_of/)