'Pure' in the Bible

The words of the Lord are pure words;As silver tried in a furnace on the earth, refined seven times.

With the pure You show Yourself pure,And with the crooked You show Yourself astute.

The precepts of the Lord are right, rejoicing the heart;The commandment of the Lord is pure, enlightening the eyes.

He who has clean hands and a pure heart,Who has not lifted up his soul to falsehoodAnd has not sworn deceitfully.

A Psalm of Asaph.Surely God is good to Israel,To those who are pure in heart!

Surely in vain I have kept my heart pureAnd washed my hands in innocence;

Beth.How can a young man keep his way pure?By keeping it according to Your word.

Your word is very pure,Therefore Your servant loves it.