One section in the first set of alternate notes seems to shorten the tune by a measure. I don't know if what I did with the notation is the best way to show this, but I couldn't think of anything better.
There are three titles in the Register that begin "Ich weiß, daß mein Erlöser lebt": "Ich weiß, daß mein Erlöser lebt, ob ich," "Ich weiß, daß mein Erlöser lebt, ob schon," and "Ich weiß, daß mein Erlöser lebt, Trotz." I'm not sure which one this is, although it seems to be drawn from part of Job 19:25 ("'I know that my Redeemer lives'").
Perhaps just coincidentally, there's some resemblance between the title of this tune and part of Psalm 121:1: "Ich hebe meine Augen auf zu den Bergen."
If the title is what's sung to the first musical phrase, the words "allen Sachen" are sung to notes of all different pitches (spanning a fifth: B A G E), giving a sense of the entirety of "allen."
There are two titles in the Register that start with "Gott ist mein Heil": "Gott ist mein Heil, Glück" and "Gott ist mein Heil, mein Hülf'." I'm not sure which this is.
There are two titles in the Register that start this way: "Herr Jesu Christ, ich weiß gar wohl, daß ich einmal" and "Herr Jesu Christ, ich weiß gar wohl, daß ich von." I don't know which one this is.