The world that we are living has everything to prove that God exists. The beautiful greeny vegetation is a prove to the existence of God. Have you eaten any vegetables recently? The taste of that tells that there is a Creator who created all those lovely vegetables which we enjoy. What about fruits? Have you add some this week? If you do, you will understand that God is the one who could have put in place these attractive and delicious fruits. What about the cold breeze in the morning and in the evening? Don't you feel them? Those are the excellency of God's existence.
God exists. Looking at yourself, you will have much more reasons to believe in the existence of God. God created you and gave you such a beautiful body. He made you either tall or short. You do not have another body except what God made for you. Can't you see that God created you marvelously and wonderfully? Your composition is a proof of the existence of God.
So, questioning the existence of God is an act of foolishness. It is only a fool who would do that. That is why the Bible says that it is a fool who says in his heart that there is no God. It takes an understanding mind to accept the existence of God.