CC Madhya 22.56

kṛṣṇa kṛpālu arjunere lakṣya kariyā
jagatere rākhiyāchena upadeśa diyā
Word for word: 
kṛṣṇa — Lord Kṛṣṇa; kṛpālu — merciful; arjunere — Arjuna; lakṣya kariyā — aiming at; jagatere — the whole world; rākhiyāchena — has protected; upadeśa diyā — giving instructions.
Translation: 
“Kṛṣṇa is so merciful that simply by aiming His instructions at Arjuna, He has given protection to the whole world.