I was up on the roof of the building at work at with the HVAC guy when we turned and saw a double rainbow going across the sky. Both were so bright and clear the HVAC guy turns to me and says, "Who says there's no God?" The beauty of the whole thing was overwhelming, and we both stared at it awestruck for a few minutes.
It's true we can't see God, but we see the proof of His existence through His creations. We can't see the wind, but we feel it on our faces, and see the leafs on the trees move when it blows. We can't see the air, but we feel it fill our lungs when we breathe. We see the billions of stars shimmer on a clear summer night, we see the sun and the moon make their circle. My family camps and hunts frequently and when I look at a tree or a plant I see beauty from every angle, no matter which way I look at it. Everyone of God's creations fit together perfectly. The sun and the moon rotate perfectly everyday, water provides for plants, and beast alike, it provides for the necessities of life. It feeds the crops, and allows the earth to give up it's fruits.
Look at the birds, listen to their songs thanking God for another glorious day. Watch them care for, protect, and play with each other. Look at how God has made sure they are fed, and clothed in the beautiful colors that God has given them. Think about the flowers, they are beautiful, delicate, and full of splendor. Think about that mountain range, tough, tall, permanent, and hard. What about rivers, lakes, or oceans?
Nature was God's first missionary. Where the is no bible there are sparkling stars, where there are no preachers, there are spring days. If a person sees nothing but nature, then nature is enough to show something about God. Everyone of us should take the time to go outside and contemplate God's Creation. The wonders we see around us are just a taste of how glorious God really is.