Your word is your promise

Matt told me the best story this morning.  He was putting the kids to bed with their nightly bed-time story.  But he was tired and only read half the chapter.  Zach promptly reminds him that he said he would read one chapter a night.  Matt says, "well that was more of a guideline."  Sam, pipes up and says with a smile "your word is your promise." and then uses her index finger to bop him on the nose a few times as a gentle reminder.  Who knew they were paying attention!