Well, putting the Tree of Knowledge in the Garden of Eden, making sure it was easily accessible and then allowing the most powerful fallen angel to tempt Adam and Eve to eat from it, shows how much God thinks temptation is important. Free Will is meaningless without temptation.
Well said. As silver is tried by fire, and gold in the furnace: so the Lord tries our hearts.
And of course Christ Himself was tempted - how then should we escape it?