Less God?

Since we had a speaker at the church who talked about creation, there's been a lot of buzz over the topic. A few questions came to mind this morning as I was reading scripture. They're not questions specifically because of the passage I was reading, but related in that one of scripture's repetitive themes is, "He is God." In regard to origins, this is what came to mind.

• Is the supremacy of the LORD diminished by someone adamantly stating that the earth is no more than 7,000 years old?
• Is He any less God if someone believes that the "evening and morning" could have taken millions of years each? 
• If there was the "gap," would He then be bowing to the microscope of our obsession with the minutia of untold history?  
• If we take Genesis literally and believe that God created what is by the spoken word, could He, like one member of our Bible study group pointed out, stick a bar of light in the sky that to science's eye appears to be billions of years old?
• Is God obligated to fit His creation into our logic and scientific research?
• Will the "laws" of science disprove the God Who created them?

Yes, I'm clearly coming from the standpoint that the Bible is the foundation of all I believe. I have wrestled through, "What if all that I've ever believed was bogus?" The place I now stand is where I will stay, more convinced than ever that my faith is built on the most solid foundation offered to mankind. So why am I asking these questions?
Whether or not our church members agreed with the speaker's arguments or found them reasonable and well laid out, he made God's people think. What an amazing thing to do! When we discussed it in our group, we came down to asking, "Why did God give us His account of origins? Why did He say only this and not provide the details we crave?"
Scripture tells us that God wants a relationship with us. A reading of all of scripture will make that clear. So what is so foundational about biblical origins?