Heat 1 tablespoon butter in a large skillet over medium-high heat. Sprinkle scallops with salt and pepper; cook until golden brown on the bottom, about 3 minutes. Turn the scallops and add herbs and the remaining 2 tablespoons butter to the pan. Continue cooking, spooning the butter over the scallops, until browned on the bottom and just cooked through, 2 to 3 minutes more. Remove from heat and stir in lemon juice. Divide the scallops among 4 plates and spoon the lemon-butter sauce over them.