"With the Lord Begin Your Task"

I was looking at "With the Lord Begin Your Task" a couple months ago and found a number of instances of the same sort of feature.  The hymn is sung to the tune "Fang dein Werk."  Here are the first two musical phrases:

In the fifth verse, the text here is "Thus, Lord Jesus, ev'ry task / Be to You commended."  The phrase "ev'ry task" is sung to notes of all different pitches (A G E), giving a sense of breadth or entirety.

These musical phrases are repeated for the next two lines.  In the second verse, the text is "On the Lord cast ev'ry care; / He is your salvation," and the phrase "ev'ry care" is sung to the same group of notes (A G E), providing the same effect.

Here are the fifth and sixth musical phrases:

In the first verse, the text here is "Ev'ry morn with Jesus rise, / And when day is ended."  The same feature is here, too:  the phrase "ev'ry morn" is sung to notes of all different pitches (A B C), but now this articulation lends something more like a sense of number.

In the third verse, the text is "All your trust and hope repose / In the mighty Master."  Like the above, the phrase "all your trust" is sung to notes of all different pitches (A B C), giving a sense of entirety.

"With the Lord Begin Your Task"

Last year, I noticed that there are seven cross inscriptions in the tune "Fang dein Werk," used with the text "With the Lord Begin Your Task."*  I feel that there might be some significance in there being seven (a Biblical number of completeness) and that there might be some connections between these inscriptions and the hymn text, but I found only one instance that I can make an argument for.

Here are the third and fourth phrases of the tune (which are just a repetition of the first and second phrases):

In the second verse, the text here is "On the Lord cast ev'ry care; / He is your salvation."  There's a cross inscription for "your salvation," illustrating that the Lord has won our salvation through His crucifixion and resurrection.

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*As it appears in The Lutheran Hymnal, the first line of the original German text is "Fang dein Werk mit Jesu an" ("With the Lord begin your task" or - more literally and more prosaically - "Begin your work with Jesus").  Apparently, this line was just shortened to get the title for the tune, but because the title omits the "an" at the end, it actually means "Catch your work."  ("Begin your work" would be "Fang dein Werk an.")  Anfangen is one of a class of German verbs called separable prefix verbs where - when conjugated - the prefix is moved to the end of the clause.  Because the "an-" isn't in the title, the verb looks like the imperative form of fangen, which means to catch.