'Pure' in the Bible

Shall mortal man be more just than God? shall a man be more pure than his maker?

If thou wert pure and upright; surely now he would awake for thee, and make the habitation of thy righteousness prosperous.

For thou hast said, My doctrine is pure, and I am clean in thine eyes.

Not for any injustice in mine hands: also my prayer is pure.

Behold even to the moon, and it shineth not; yea, the stars are not pure in his sight.

The topaz of Ethiopia shall not equal it, neither shall it be valued with pure gold.