John Chrysostom — as excerpted in the Catena Aurea on John 18:10-11

“(Hom. lxxxiii) Peter trusting to these last words of our Lord’s, and to what He had just done, assaults those who came to take Him: Then Simon Peter having a sword drew it, and smote the high priest’s servant. But how, commanded as he had been to have neither scrip, nor two garments, had he a sword? Perhaps he had foreseen this occasion, and provided one.”