Bogus and altered quote. Actual quote is from GW's first annual message to Congress, and referenced defense of the nation, not defense of the people against their own government.
"A free people ought not only to be armed, but disciplined; to which end a Uniform and well digested plan is requisite: And their safety and interest require that they should promote such manufactories, as tend to render them independent others, for essential, particularly for military supplies."
http://gwpapers.virginia.edu/documents/union/state1.html
The cause of 2A is not well served by invented quotations.
I copied it from a history website. I have been fighting for the 2nd for 50 years... I will research the quote further. I did not create it. Those that want to steal our guns hate Washington anyway.
LLS