'Pure' in the Bible

The thoughts of the wicked are an abomination to the LORD: but the words of the pure are pleasant words.

Who can say, I have made my heart clean, I am pure from my sin?

Even a child is known by his doings, whether his work be pure, and whether it be right.

The way of man is froward and strange: but as for the pure, his work is right.

Every word of God is pure: he is a shield unto them that put their trust in him.

There is a generation that are pure in their own eyes, and yet is not washed from their filthiness.