For the Second Sunday after Epiphany, are these cantatas: BWV 155, BWV 3 and BWV 13.
Recordings of BWV 155 are here.
Movements 2, 4 and 5 are real gems
Recordings of BWV 3 are listed here.
With the theme centering on sorrow and grief encountered on the way to heaven, not surprisingly, the opening chorale and the bass aria have a mournful tone. The second movement, the recitative and chorale, is the most upbeat of all the movements of this cantata.
BWV 13 recordings can be found here.
The fifth movement is over 10 minutes long, and is seemingly one of the most doleful amongst those listed since Christmas. It is preceded by a striking soprano recitative. Likewise the eight minute opening tenor aria is similarly doleful as befits the theme of woe, misery and weeping, yet with a call in the final chorale to "traue dem alleine," trust Him alone. The chorale of the third movement provides some relief from the generally sad tone of this cantata.