So the Lord says in the Bhagavad-gītā: paritrāṇāya sādhūnāṁ vināśāya ca duṣkṛtām (BG 4.8). So two purposes. When God incarnates, He has got two mission. One mission is paritrāṇāya sādhūnām and vināśāya duṣ... One mission is to deliver the faithful devotees, sādhus. Sādhu means saintly person.
The sādhu... I have explained several times. Sādhu means devotee. Sādhu does not mean the worldly honesty or dishonesty, morality or immorality. It has nothing to do with material activities. It is simply spiritual, sādhu. But sometimes we derive, "sādhu," a person's material goodness, morality. but actually "sādhu" means in the transcendental platform. Those who are engaged in devotional service. Sa guṇān samatītyaitān (BG 14.26). Sādhu is transcendental to the material qualities. So paritrāṇāya sādhūnām (BG 4.8). The paritrāṇāya means to deliver.
Now if a sādhu is already delivered, he is on the transcendental platform, then where is the necessity of delivering him? This is the question. Therefore this word is used, viḍambanam. It is bewildering. It is contradictory. It appears to be contradictory. If a sādhu is already delivered... Transcendental position means he's no longer under the control of the three material modes of nature, goodness, passion and ignorance. Because it is clearly stated in the Bhagavad-gītā: sa guṇān samatītyaitān (BG 14.26). He transcends the material qualities. A sādhu, devotee, Then where is the question of deliverance? The deliverance... He does not require deliverance, a sādhu, but because he is very much anxious to see the Supreme Lord eye to eye, that is his inner desire, therefore Kṛṣṇa comes. Not for deliverance. He's already delivered. He's already delivered from the material clutches. But to satisfy him, Kṛṣṇa is always...
Just like a devotee wants to satisfy the Lord in all respects, similarly more than the devotee, the Lord wants to satisfy the devotee. This is the exchange of loving affairs. Just like in your, in our ordinary dealings also, if you love somebody, you want to satisfy him or her. Similarly, she or he also wants to reciprocate. So if that reciprocation of loving affairs is there in this material world, how much it is greatly elevated in the spiritual world? So there is a verse that: "Sādhu is My heart, and I am also the sādhu's heart." The sādhu is always thinking of Kṛṣṇa and Kṛṣṇa is always thinking of His devotee, sādhu.