I know who is practicing the Way and who is not.
Therefore I expound various teachings
To all living beings
According to their capacities.

The Buddha sings these verses in Chapter Sixteen of the Lotus Sūtra. Even though the Buddha knows when we have strayed from the way of compassion and wisdom that he has opened for us, he knows that the innate capacity we have for enlightenment remains unchanged. Therefore, he does not judge us, or give up in his efforts to lead us away from our delusions. When we maintain our determination to save all beings despite their delusions, we maintain this mind of the Buddha and nourish the seeds of our own enlightenment.