In Bhagavad-gītā, the Lord says that one should surrender unto Him, giving up all other engagements. The Lord also gives His word there that He will protect surrendered souls from the reactions of all sinful activities. Śrīla Rūpa Gosvāmī says that the distresses from sinful activities are due both to the sins themselves and to sins committed in our past lives. Generally, one commits sinful activities due to ignorance. But ignorance is no excuse for evading the reaction—sinful activities. Sinful activities are of two kinds: those which are mature and those which are not mature. The sinful activities for which we are suffering at the present moment are called mature. The many sinful activities stored within us for which we have not yet suffered are considered immature. For example, a man may have committed criminal acts, but not yet been arrested for them. Now, as soon as he is detected, arrest is awaiting him. Similarly, for some of our sinful activities we are awaiting distresses in the future, and for others, which are mature, we are suffering at the present moment.
(Nectar of Devotion).

The head is considered to be the intellectual part of the body. Similarly, if there is no brāhmaṇa in the society, that is a dead body. If there is no spiritual man in the society, that is a dead society. This is very nice, natural division. Therefore Bhagavān Kṛṣṇa says, cātur-varṇyaṁ mayā sṛṣṭaṁ guṇa-karma-vibhāgaśaḥ: (B.G.4:13) "I have created the four divisions of society according to quality and work." If somebody is working just like a brahmacārī, brāhmaṇa, and he has acquired the quality... What is that quality? To understand Kṛṣṇa or the Supreme Lord. So he's a brāhmaṇa. Why he should be called for the action of the arms? The arms for defending, that is kṣatriya. Of course, that is required. To protect the country, to protect the society, military arrangement should be there. Nobody disapproves. But not the brāhmaṇas. It is putting the horse before a cart. Horse is required for different purpose. Another beast of those, asses, mules and bulls, they are required for towing cart.
(Lecture on Bhagavad-Gita--7:1--San Francisco--17th. March, 1968).

So when the unwanted children, irresponsible children, they do not follow any more the tradition, the family tradition, or jāti-dharma, so they create a class of population in the varṇa-saṅkara. So everything becomes topsy-turvy, hellish condition. And actually it has so happened. Now there is no more jāti-dharma. Everyone is engaged somehow or other to fill up the belly. Formerly, formerly there was stricture. The brāhmaṇas, the kṣatriyas, and the vaiśyas, these three higher castes, there were certain restrictions. The brāhmaṇa would not do this or the brāhmaṇa must do this. So that is called jāti-dharma. A brāhmaṇa cannot accept service from anywhere.
(Lecture on bhagavad-Git--1:41-42--London--29th. July, 1973).