Arcana Coelestia#8266
8266. 'My strength' means that the source of the whole of power is the Lord Himself. This is clear from the meaning of 'strength' as power and force. And since it says 'my strength' and this has reference to Jehovah or the Lord, the meaning is that the source of the whole of power is the Lord Himself.
Exodus第15章:14
14
The peoples have heard. They tremble. Pangs have taken hold on the inhabitants of Philistia.