Judges 2:7-15 (NIV) 7 The people served the LORD throughout the lifetime of Joshua and of the elders who outlived him and who had seen all the great things the LORD had done for Israel. 8 Joshua son of Nun, the servant of the LORD, died at the age of a hundred and ten.
And then ONE generation latter!!!
10 After that whole generation had been gathered to their fathers, another generation grew up, who knew neither the LORD nor what he had done for Israel....they did evil in the eyes of the LORD and served the Baals. 12 They forsook the LORD, the God of their fathers...
The church is ONE generation way from extinction.....this is important to note the importance of Teaching our youth in Biblical matters.