Agent Smith stopping St George mid-punch

St. George turned and leaped at Christian. If he could get one punch—a careful punch—he could knock her out. He didn’t know if Smith’s powers worked when he—she—was unconscious, but it couldn’t hurt.
She smiled as he lunged through the air. One hand came up and waggled a finger at him. “I’m not the one you’re fighting, am I?”
St. George froze in the air with his arm back. He dropped to the ground and landed on the balls of his feet.

Excerpt From Ex-Purgatory, pg 586
Peter Clines
https://books.apple.com/us/book/ex-purgatory/id676938479