They like to use Zeph 2:3
"Seek Jehovah, all you meek ones of the earth, Who observe his righteous decrees. Seek righteousness, seek meekness. Probably you will be concealed on the day of Jehovah’s anger."
It's the only place in the Bible where the word "probably" appears which makes it uncertain here. Seeking Jehovah, being meek, observing his decrees, seeking righteousness and meekness just isn't enough because that's just probably. So you are never on the safe side of the balance.