Charles Ellicott Commentary Psalms 16:6

"The lines are fallen unto me in pleasant places; Yea, I have a goodly heritage." — Psalms 16:6 (ASV)

The lines are fallen unto me. —The allusion is to the “measuring cords” by which allotments of land were measured, and they are said to “fall” possibly because after the measurement the portions were distributed by “lot” (Joshua 17:5; Micah 2:5).