3. Sorrow—such as arises from serious thoughts of eternity.
laughter—reckless mirth (Ec 2:2).
by the sadness … better—(Ps 126:5, 6; 2Co 4:17; Heb 12:10, 11). Maurer translates: "In sadness of countenance there is (may be) a good (cheerful) heart." So Hebrew, for "good," equivalent to "cheerful" (Ec 11:9); but the parallel clause supports English Version.