'Untouched' in the Bible

To keep the word untouched by evil, clear from all shame, till the revelation of our Lord Jesus Christ:

The religion which is holy and free from evil in the eyes of our God and Father is this: to take care of children who have no fathers and of widows who are in trouble, and to keep oneself untouched by the world.

And in their mouth there was no false word, for they are untouched by evil.