For a human being, 'humility' means our recognition of our limitations. For Hashem, 'humility' means His recognition of our
-Dov
Reb Yochanan says: "Where we find the greatness of Hashem, we find His humility." What Dov means, is that Hashem's humility manifests itself in that He truly understands our limitations and continues to love us even in our sinfulness and insanity. For Hashem, that is humility, for He lowers Himself to dwell within us even in our impurities.