Because strait is the gate, and narrow is the way,
which leadeth unto life, and few there be that find it.
Matthew 7:14
"There are thousands who are traveling the road of darkness and error, the broad road which leads to death, who flatter themselves that they are in the path to happiness and heaven; but they will never find the one nor reach the other." 
Testimonies for the Church vol.3, p.438 E.G.W.