By faith we understand that the worlds were prepared by the word of God, so that what is seen was not made out of things which are visible. (Heb 11:3)"Yeah, sure, I get it." But ... do we? The author of Hebrews explained in the previous chapter that faith is absolutely essential. We are to "draw near with a sincere heart in full assurance of faith" (Heb 10:22). What faith is that? That our hearts are "sprinkled clean from an evil conscience and our bodies washed with pure water" (Heb 10:22). He warns, "Do not throw away your confidence, which has a great reward" (Heb 10:35) because "My righteous one shall live by faith" (Heb 10:38; Hab 2:3-4). To "shrink back" is "destruction," but faith preserves the soul (Heb 10:39) Faith is essential. So the author asks and answers, "What is faith?" We have the famous, "Now faith is the assurance of things hoped for, the conviction of things not seen" (Heb 11:1). That is, faith is not a whim, a mere belief. It is "assurance" -- literally, the substance -- of hope and the "conviction" -- literally, the proof or evidence -- of things not seen. Like ... Creation (Heb 11:3).
The text tells us that the belief that the worlds were prepared by the word of God and not "made out of things which are visible" is a matter of faith. It is one of those "things not seen." We might question it. "I mean, how can you suggest it was not made out of things that are visible if science says otherwise?" By faith. By believing God's Word. That's what we read at the beginning of our bibles, so that's what we believe. That's faith.
So why am I telling you this? I mean, isn't that obvious? Yes, it is faith. We didn't see it happen. We have arguments from the world that it did not happen that way. But we choose, based on what the Bible tells us, to believe it ... by faith. "So, Stan, what's your point?" Well, just 3 verses later we read, "Without faith it is impossible to please Him, for he who comes to God must believe that He is and that He is a rewarder of those who seek Him" (Heb 11:6). Well, now, hang on a minute! Did the author of Hebrews just link "by faith we believe in Creation" to "if you don't believe that, you can't please God"? I'm not going that far ... out loud. I just think that it is pretty brave to say, "I have faith" and "I can please God" while openly denying that God made all that is seen from that which is not seen -- a fundamental matter of faith. I would not be comfortable standing there when the two -- Hebrews 11:3 and Hebrews 11:6 -- are so close together. I would personally be cautious about affirming the latter while denying the former. But that's just me.