The words of the Lord are pure words, like silver refined in a furnace on the ground, purified seven times. Psalm 12:6

The statutes of the Lord are right, rejoicing the heart: the commandment of the Lord is pure, enlightening the eyes, reverence for the Lord is pure, lasting forever. The laws of the Lord are true; each one is fair. They are more desirable than gold, even the finest gold. They are sweeter than honey, even honey dripping from the comb. Psalm 19:8-10