Charles Ellicott Commentary Joshua 23:14

"And, behold, this day I am going the way of all the earth: and ye know in all your hearts and in all your souls, that not one thing hath failed of all the good things which Jehovah your God spake concerning you; all are come to pass unto you, not one thing hath failed thereof." — Joshua 23:14 (ASV)

You know ... that not one thing has failed. —These words, as well as the similar statement in Joshua 21:43-45, show that though the conquest of Canaan by Joshua was in one way a limited conquest, yet it fully satisfied the hopes of Israel for the time: i.e., that they understood the Divine promises in that sense in which we see them to have been actually fulfilled.