A sking, in the Bible use of the term, means more than a mere verbal petition. The heart and the flesh must cry out for God. "My soul longs, yea, even faints for the courts of the Lord: my heart and my flesh cries out for the living God." (Psalm 84:2)
This is in very deed "muscular Christianity," and it strengthens both muscles and nerves.--Present Truth, August 1, 1901--Original title: Back Page.