HEART-RENDING is divinely wrought and solemnly felt. It is a secret grief which is personally experienced, not in mere form, but as a deep, soul-moving work of the Holy Spirit upon the inmost heart of each believer. It is not a matter to be merely talked of and believed in, but keenly and sensitively felt in every living child of the living God. It is powerfully humiliating, and completely sin-purging; but then it is sweetly preparative for those gracious consolations which proud unhumbled spirits are unable to receive; and it is distinctly discriminating, for it belongs to the elect of God, and to them alone.
The text commands us to rend our hearts, but they are naturally hard as marble: how, then, can this be done? We must take them to Calvary: a dying Saviour's voice rent the rocks once, and it is as powerful now.
O blessed Spirit, let us hear the death-cries of Jesus, and our hearts shall be rent even as men rend their vestures in the day of lamentation. CH Spurgeon