Here's a great insight on Colossians 2:8 and the importance of being aware of and being wary of philosophy with Dr. Craig. Although, these two gentlemen discuss the only verse in Scripture which discusses "philosophy," there are many other verses encouraging "the love of wisdom" and thinking.
Here are just a few:
Prov. 8:1 and 9:9-10 "Does not wisdom call? Does not understanding raise her voice?" "Give instruction to a wise man, and he will be still wiser... The fear of the LORD is the beginning of wisdom." (1 Kings 3 is also great.)
1 Cor. 14:20 "Brothers, do not be children in your thinking. Be infants in evil, but in your thinking be mature."
Many times through-out the Gospels, Jesus wishes that his disciples were able to think through and understand his parables on their own. "And he said to them, 'Do you not yet understand?'" Mark 8:21. He almost assumes that his followers would be able to be faithful and thinking men. "'If the blind lead the blind, both will fall into a pit.' But Peter said to him, 'Explain the parable to us.' And he said, 'Are you also still without understanding?'" Matt. 15:14-15. "With many such parables he spoke the word to them, as they were able to hear it. He did not speak to them without a parable, but privately to his own disciples he explained everything." Mark 4:34.
This is so prevalent that an article by Peter Scaer, which I have recently referenced, describes Jesus along with the early Christians as philosophers.
I haven't even mentioned the Christian Apologetics creed: 1 Peter 3:15.
Here's more on Christian thinking and philosophy:
<-Christian Critical Thinking-Advice to Christian Philosophers->
For more William Lane Craig, check out these posts:
<-Belief to Faith Q&A-Recent Debate-Phil. Foundations Book->
Other neat stuff:
<-The Everlasting Man-Religion's Place in Society Debate-Mmm... Bacon->