"Woe to them that are at ease in Zion, and trust in the mountain of Samaria, which are named chief of the nations, to whom the house of Israel came!" —Amos 6:1 (King James Version)
Zion is Mount Zion, near Jerusalem, the capital of the southern kingdom of Judah. The mountain of Samaria is the site of capital of the northern kingdom of Israel. They're both strongholds of the rich. Saying someone is "at ease" in Zion or "trusting in" Samaria is like saying a millionaire is "comfortable" or "secure". Amos, writing 750 years before Jesus, is another voice in the wilderness crying, "Woe to the rich!"