Just like a small boy, your child, if somebody slaps him in the street, that boy may excuse, "Oh, all right," but his father and mother will never tolerate. "Why you have slapped my son?" That is the nature. Similarly, the sādhu, who is a great devotee of the Lord, they might be tolerant. You can crucify him, can do any misbehavior to him—he's never angry. But God will never tolerate. We must always remember that. He has got special protection, special vision, on the sādhu.
You'll find in the Bhagavad-gītā that, samo 'haṁ sarva . . . samo 'haṁ sarva-bhūteṣu na me dveṣyo 'sti na priyaḥ (BG 9.29). The Lord says: "I am equal to everyone." Otherwise, how He can be God? He is equal to everyone. Yes. "I am equal to everyone. Nobody's My enemy and nobody's My friend." Samo 'haṁ sarva-bhūteṣu na me dveṣyo 'sti na priyaḥ: "Nobody's My enemy. Nobody's My friend. I am equal to everyone." But ye tu bhajanti māṁ bhaktyā teṣu te mayi: "But anyone who is devoted to Me, oh, I have got particular attention for him."
Although He's neutral, still, the person who is devotee, who's always thinking of Kṛṣṇa, Kṛṣṇa consciousness, oh, there is a special protection. Special. Therefore Lord Kṛṣṇa declares, you'll find in the Bhagavad-gītā, kaunteya pratijānīhi na me bhaktaḥ praṇaśyati (BG 9.31): "My dear Kaunteya, Arjuna, you can declare it in the . . . to the world that My devotee will be never vanquished. Never be vanquished."
So here the same thing is said, that what is the mission of Lord, why does He come down. Now, that is explained here. He says, paritrāṇāya sādhūnām: "I come down, I incarnate Myself or I send My representative, only for the protection of the saintly persons, sages." And vināśāya ca duṣkṛtām. Duṣkṛtām: "Of those who are miscreants, just to finish them." Lord Kṛṣṇa's mission, this was two things. Paritrāṇāya sādhūnāṁ vināśāya ca duṣkṛtām (BG 4.8).
He wanted to establish Arjuna, the five brothers, the most pious, I mean, devotees and kṣatriyas, He wanted to establish them for ruling over this world, and He wanted to vanquish the party of Arjuna (Duryodana). That was His mission.
Two things. Paritrāṇāya sādhūnāṁ vināśāya ca duṣkṛtām, duṣkṛtām, dharma-saṁsthāpanārthāya. And another mission is to establish what is real religion. What is religion. In the name of religion, so many things are going on, but the real religion is that we must know that our natural function is to render service to the Lord. That's all. That is real religion. And forgetting this, forgetting this principle of life, under designation of this matter, I am serving, giving my service to so many things.