Who can understand the things Paul writes about?
Only believers can comprehend these truths; unbelievers cannot. Paul writes in the realm of the believer, and those who simply take God at His Word by faith understand that the universe was framed by the Word of God, who spoke it into being.
Les explains that Paul always deals in the realm of the believer. The unbeliever cannot comprehend these things, but believers can. This is not blind faith; it is documented faith, the substance of things hoped for and the evidence of things not seen. By simply taking God at His Word, believers understand that the worlds and universe were framed by the Word of God. He spoke, and it came into being. The things seen and tangible were not made out of things that appear; everything created came out of nothing.