preparation for future leaders

lately i have been going through the book of 1 Chronicles. Reading the stories of David in the last half or so of the book has been really interesting for me. Yesterday and today i have read of how David desired to build a house for God (a temple) for the people of Israel to come and worship in and a place for the ark of the covenant to reside. It sounds like a good plan right, build a permanent place one that is fit (or as close to it as man can come) to house the ark of the covenant representing the presence of God. Wrong, God had other things in store, because of David's history in the battlefield God informs him that although it is a good idea for a permanent building David would not be the one to build it, it would be his son Solomon. I'm sure this must have hurt David to know that he wouldn't be the one to build but it didn't stop him. he continued gathering materials getting plans ready etc. preparing for the time when he would step down and another would take his place. Solomon's temple turned out to be everything that David had pictured and probably more, but it all started when a leader decided that he would continue preparing even though he may not be the one to bring it to completion.