I love this line from the Message translation, because even Job made the same mistake we do sometimes. We rely more on what people and books tell us about God than really getting to know God through prayer and reading his Word ourselves.
We get lazy. We let other people and things do the work for us—our pastor's Sunday sermon, books about Christianity, or even a friend's perspective. Nothing is wrong with any of these things. On the contrary, they enrich our faith walk, but they can't be the heart of our belief.
Any relationship takes work, but the effort is usually much more rewarding than trusting a third party go-between. Think of it this way. Let's say you meet the person you're one day going to marry (only you don't know that yet). Your friend is with you at the time, too. You really like this guy/girl and want to know more. Then you find out your friend knows this person quite well because they've been pretty good friends for a while. She's even written down things about him in her journal.
You ask questions. Your friend tells you what she knows. You read her journal entries about him. As you ask more questions, you continue to listen to her interpretation of who this guy is and you come to "know" him through your friend's perspective.
But do you really know him? Do you understand who he is? Can your friend give you the complete picture of who this person is and what they're like? Don't you want to know for yourself? I mean, what if this is the guy you wind up marrying?
You wouldn't want to get to know your spouse through another person, so why do the same thing with God? And the best way to get to know God—and to keep learning about him—is to pray and read the Bible.
As one of those people who used to rely more on books and sermons than the real deal, I can tell you there's a big difference in knowing about God and experiencing him. And the more we experience God, the more he shows in our lives, which is the ultimate strength of our testimony to our unbelieving spouses.
Find out for yourself. Make a commitment to seek God and to really know who he is first hand. Experience him. I know you won't be disappointed.
Praying and believing,