'Pure' in the Bible

The Lord abhors the plans of the wicked, but pleasant words are pure.

Who can say, "I have kept my heart clean; I am pure from my sin"?

Even a young man is known by his actions, whether his activity is pure and whether it is right.

The way of the guilty person is devious, but as for the pure, his way is upright.

The one who loves a pure heart and whose speech is gracious -- the king will be his friend.

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