Mit Ernst, o Menschenkinder
... that "Mit Ernst, o Menschenkinder", a 1642 Advent hymn, includes a call to penitence that John the Baptist took from the prophet Isaiah?
... that "<b id="mwAiY"><a href="./Mit_Ernst,_o_Menschenkinder" id="mwAic" rel="mw:WikiLink" title="Mit Ernst, o Menschenkinder">Mit Ernst, o Menschenkinder</a></b>", a 1642 <a href="./Advent_song" id="mwAig" rel="mw:WikiLink" title="Advent song">Advent hymn</a>, includes a call to penitence that <a href="./John_the_Baptist" id="mwAik" rel="mw:WikiLink" title="John the Baptist">John the Baptist</a> took from the prophet <a href="./Isaiah_40" id="mwAio" rel="mw:WikiLink" title="Isaiah 40">Isaiah</a>?<!--Special occasion hook for advent-->