The harmonizations are different: The two excerpts share only the last two chords! Without altering the melody, Bach even manages to harmonize the first phrases in different modes: That of “Befiehl” in Major whereas “Und ob gleich” is in minor.

The harmonizations are essentially the same; only the last chords are different.

The harmonizations are different. The first excerpt is in minor, the second in Major.

The harmonizations are different. The first excerpt begins with the melody unaccompanied, while the second one adds harmony throughout; and the first excerpt is completely diatonic until the last chord while the second one is considerably more chromatic.

The second excerpt has a thicker orchestration and new voicings and voice-leading but the harmonizations are the same.

The harmonizations are spectacularly different: The second has a more elaborate harmonic palette and is more chromatic.