God's Word is pure

“The words of the Lord are flawless, like silver refined in a furnace of clay, purified seven times.” Psalm 12:6
How does a silversmith know when the silver he is refining is finally pure? He can see his face reflected in it.
This analogy is extremely powerful when we consider it in the context of this verse. The Word of God is flawless, without falsehood or error. It is ‘purified seven times’ – seven being the number of completeness, or perfection. Every word He has said is true, even the things He has told us about that are yet future for us. But more than this: God’s Word reflects His face to us.
We can know God’s power by looking at creation. The forces at work in the universe, the immense heat and pressure inside a star, the vast distances of interstellar space, all the way down to planet Earth, to our own bodies, to the microscopic structure of the cells that make up our bodies; even the molecules that make up those cells and the atoms that make up the molecules, show God’s creative power. Creation shows us God’s existence, but it cannot show us His character, because we see it in a fallen state. To find out what God’s character is like, we need to read His Word.