Luke 1:51

But to those that fear Him, He hath done mighty things with His arm; though thou comest weak to God, if thou hast feared Him thou shalt obtain the promised strength.

But these words may be more appropriately taken to refer to the hostile ranks of the evil spirits. For they were raging on the earth, when our Lord's coming put them to flight, and restored those whom they had bound, to His obedience.

In describing the state of mankind, she shows what the proud deserve, and what the humble; saying, He hath showed strength with his arm, &c. i. e. with the very Son of God. For as your arm is that whereby you work, so the arm of God is said to be His word by whom He made the world.

Or by this she means that they who fear shall obtain mercy, both in that generation, (that is, the present world,) and the generation which is to come, (i. e. the life everlasting.) For now they receive a hundred-fold, but hereafter far more. (Matt. 19:29.) For in His arm, that is, His incarnate Son, He hath showed strength, seeing that nature was vanquished, a virgin bringing forth, and God becoming man. This might also be understood of the Jews whom He scattered into all lands as they are now scattered.

(Photius.) Or she says, Hath showed, for will show strength, not as long ago by the hand of Moses against the Egyptians, nor as by the Angel, (when he slew many thousand of the rebel Assyrians,) nor by any other instrument save His own power, He openly triumphed, overcoming spiritual (intelligibiles) enemies. Hence it follows, he hath scattered, &c. that is to say, every heart that was puffed up and not obedient to His coming He hath laid bare, and exposed the wickedness of their proud thoughts.