He Smote the Egyptian - Exodus 2:12 

This was creature-strength, wrought on by creature-passion, and ending in creature-failure. Moses stood on an eminence, and reached down to these poor brethren of his with a passing spasm of pity. He was very careful to look this way and that, so as not to invalidate his own position at court. And fear for himself carried him swiftly from the scene of his people's woes. It was a brief effort to do the Divine work of redemption in his own energy. Long years must pass, during which God would drain away drop by drop his strength, his resolution, and his very desire to be an emancipator; that when he had become nothing, God through him might effect His almighty will.
 
We sometimes smite the Egyptian within. - We rise up against some tyrant passion, and strike two or three vigorous blows. Our efforts to rid ourselves of its thrall originate and are prosecuted in our own resolve. At first the conflict seems easily our own; finally the dead weight of all the Egyptians within is more than a match for us.
 
We often smite the Egyptian without. - We make an assault on some giant evil - drink, gambling, impurity. It seems at first as though we should carry the position by our sudden and impetuous rush. But Egypt conquers in the end, and we flee.
 
No: we need to learn for the inward and outward conflict the lesson that forty years in Midian taught Moses, that only the Spirit of God in man can overcome the spirit of the world. By disappointment and repeated failure, by the silence of the desert, we are taught that we are nothing - then God becomes our all in all: and all things become possible to us as we believe.