Locke: No, Ben was never even there when I left, he was already gone. I wasn't exhiled; I chose to leave.
Widmore: Why would you do that, John? You've come to bring them back? The ones who left.
Widmore: I understand you lying to me, I do, but there's something you should know. All your friends who left the island, they've been back three years.
Locke: Three years?
Widmore: They've gone back to their normal lives, and none of them has spoken a word of truth about where they were.
Locke: I have to bring them back.
Widmore: And I'm going to do everything in my power to help you do that.
Locke: Why would you help me?
Widmore: Because there's a war coming, John. And if you're not back on the island when that happens, the wrong side is going to win.