The German translation of "Sheep May Safely Graze" is "Schafe Konnen Sicher Weiden" - (with two dots over the 'o' in 'Konnen'). I did try the links above and a google search, but found only German pages I cannot read and links to BUY sheet music/lyrics. I'm new with computers, though, so better luck to you!
Those "Sheep" have been my favourite Bach piece for a long long time ...