From St. Gregory the Theologian (Valedictory Oration #42)
You did not know that three gathered together in the Name of the Lord count for more with God than tens of thousands of those who deny the Godhead. Would you prefer the whole of the Canaanites to Abraham alone? or the men of Sodom to Lot? or the Midianites to Moses, when each of these was a pilgrim and a stranger? How do the three hundred men with Gideon, who bravely lapped, compare with the thousands who were put to flight? Or the servants of Abraham, who scarcely exceeded them in number, with the many kings and the army of tens of thousands whom, few as they were, they overtook and defeated? Or how do you understand the passage that though the number of the children of Israel be as the sand of the sea, a remnant shall be saved?
And again, I have left me seven thousand men, who have not bowed the knee to Baal? This is not the case; it is not? God has not taken pleasure in numbers.