Psalms 19:9b-10 ESV

“…the rules of the Lord are true, and righteous altogether.  More to be desired are they than gold, even much fine gold; sweeter also than honey and drippings of the honeycomb.”

God’s decrees are righteous and by us reading them, it helps us to live the way God wants us to be.  Therefore, His words are greater then silver or gold and sweeter than honey because by reading His word we understand the abundant life He has for us.