Out of 11,001 people, only one will not see calamity come upon him or her. Those 11,001 includes both justified people and unjustified people. What distinguishes that one person from eleven thousand is, this one person dwells in the secret place.
Everything God has done, and is doing, and will do is towards this end: that in all things Christ would have the preeminence.
The Bible teaches that Christians should grow in discernment, which naturally includes the need to judge righteously.