Which rejoice exceedingly - Hebrew “Who rejoice upon joy or exultation” (אל־גיל 'el-gı̂yl), that is, with exceedingly great joy.
When they can find the grave - What an expression! How strikingly does it express the intense desire to die, and the depth of a man’s sorrow, when it becomes a matter of exultation for him to be permitted to lie down in the corruption and decay of the tomb! A somewhat similiar sentiment occurs in Euripides, as quoted by Cicero, Tusc. Quaest. Lib. 1, cap. 48:
Nam nos decebat, doman
Lugere, ubi esset aliquis in lucem editus,
Humanae vitae varia reputantes mala;
At qui labores morte finisset graves
Hunc omni amicos laude et Lactitia exsequi.