The notion of stating the generation will not pass away is reminiscent of Genesis 3:4:
"At this the serpent said to the woman: “YOU positively will not die"".
The verse is similar to the prophecy regarding the genereration alive in 1914 that the Watchtower Society claimed God promised. That promise was declared inside the Awake! magazine cover all the way through the October 22, 1995 edition. It was finally changed in the November 8, 1995 issue of the journel:
Quote: "Most important, this magazine builds confidence in the Creator's promise of a peaceful and secure new world before the generation that saw the events of 1914 passes away."
The Watchtower Society continues to hold carrots out to Jehovah's Witnesses down to this day. It's a way to control, manipulate, and keep their members in check.