The evidence is Creation and Scripture; God cannot have an explanation of His existence which is external to Him for then He would depend for His existence on whatever thing it is. That's why is it said 'God is a necessary Being'. Science and Philosophy theories breakdown when an infinite regression is called upon.
Most get their information from organization and groups (as in NOVA, Nature, Scientific American, all secular universities) that will only explain science from a naturalistic point of view by policy (not a conspiracy, but some don't know this important factoid) even though the explanation is better explain by the supernatural. That why science can be used to determine God's existence but can't be used exclusively, nor can the 5 senses be used exclusively. It's framed better when God's existence is not ruled out before the investigation begins which the AAAS membership does - http://www.aaas.org/
Most get their information from organization and groups (as in NOVA, Nature, Scientific American, all secular universities) that will only explain science from a naturalistic point of view by policy (not a conspiracy, but some don't know this important factoid) even though the explanation is better explain by the supernatural. That why science can be used to determine God's existence but can't be used exclusively, nor can the 5 senses be used exclusively. It's framed better when God's existence is not ruled out before the investigation begins which the AAAS membership does - http://www.aaas.org/
Atheist Credo: A universe by chance that also just happened to admit the observer by chance.