It was a big surprise to see him now standing in the bunker with his hands defensive in the air. The Winchesters and you looking surprised and confused at him.

I'm not here to fight. I thought about what you said. You're right. Metatron, he's...something needs to be done.

Dean comes to him and extends his hand to him. But you see that he helds the first blade hidden in his other hand and you understand what he has planned.