Last week and this I have been teaching a mini-class on the existence of God. One argument for his existence is the "teleological" or "cosmological" argument, that is, that creation assumes a Creator and is indeed filled with signs of his direct involvement therein. One of the resources I've used in the development of my classes is a several-part series on this argument by Stephen Meyer. Each installment is about 20 minutes long but well worth the time.
Happy viewing! May the Lord build your faith and equip you to help others see - indeed know - that God is.