Uns ist ein Kind geboren, BWV 142

Uns ist ein Kind geboren, BWV 142 / Anh. II 23, is a Christmas cantata by an unknown composer. In the Bach-Werke-Verzeichnis it is listed among the works with a doubtful attribution to Johann Sebastian Bach. The text is based on a libretto by Erdmann Neumeister first published in 1711. Although attributed to Bach by the Bach-Gesellschaft when they first published it in the late nineteenth century, that attribution was questioned within thirty years and is no longer accepted. Johann Kuhnau, Bach's predecessor as Thomaskantor in Leipzig, has been suggested as the probable composer, but without any certainty.