Gabriel's expression is one of amusement, "Ooo"ing softly and laughing a little at the sudden viciousness the other is displaying. Oops, looks like he really got under his skin this time and he couldn't be more pleased that his teasing worked. He watches the other stalk forward without losing his cool, calm sort of lean. His wings are the only thing that respond, opening slightly and poising in a ready position, just in case the other does lash out at him. There isn't anything intimidating in the stance, he's too casual for that, but he's no fool, even if it were just a plain knife he didn't want to be stabbed by it.

Actually, his eyes fall to the blade itself and he can't help but furrow his brow a little as he studies it with some curiosity. Though at the comment about being the reason God left he does tense, rising to the challenge then and narrowing his eyes as he squares his shoulders.

"Why? Because I refuse to bow to you?" He scoffs, "And we'll see how quick your little pet turns on you when he learns the truth as well."

The fact the other was getting so defensive meant that it could be possible, that the other had his doubts and concerns about the Mirror Gabriel being swayed.

"God left because of the humans being selfish, greedy for power and destructive. They squandered their gifts and turned their world into a pit. If anyone is an example of that it's you."