BG 3.13

3.13 यज्ञशिष्टाशिनः who eat the remnants of the sacrifice? सन्तः the righteous? मुच्यन्ते are freed? सर्वकिल्बिषैः from all sins? भुञ्जते eat? ते those? तु indeed? अघम् sin? पापाः sinful ones? ये who? पचन्ति cook? आत्मकारणात् for their own sake.Commentary Those who? after performing the five great sacrifices? eat the remnants of the food are freed from all the sins committed by these five agents of insect slaughter? viz.? (1) the pestle and mortar? (2) the grinding stone? (3) the fireplace? (4) the place where the waterpot is kept? and (5) the broom. These are the five places where injury to life is daily committed. The sins are washed away by the performance of the five MahaYajnas or great sacrifices which every Dvija(twicorn or the people belonging to the first three castes in Hindu society? especially the Brahmin) ought to perform1. DevaYajna Offering sacrifices to the gods which will satisfy them?2. BrahmaYajna or RishiYajna Teaching and reciting the scriptures which will satisfy Brahman and the Rishis?3. PitriYajna Offering libations of water to ones ancestors which will satisfy the manes?4. NriYajna The feeding of the hungry and the guests? and?5. BhutaYajna The feeding of the subhuman species? such as animals? birds? etc.

— vedicscriptures · exposition · source ↗

The devotees of the Supreme Lord, or the persons who are in Kṛṣṇa consciousness, are called santas, and they are always in love with the Lord as it is described in the Brahma-saṁhitā (5.38): premāñjana-cchurita-bhakti-vilocanena santaḥ sadaiva hṛdayeṣu vilokayanti. The santas, being always in a compact of love with the Supreme Personality of Godhead, Govinda (the giver of all pleasures), or Mukunda (the giver of liberation), or Kṛṣṇa (the all-attractive person), cannot accept anything without first offering it to the Supreme Person. Therefore, such devotees always perform yajñas in different modes of devotional service, such as śravaṇam, kīrtanam, smaraṇam, arcanam, etc., and these performances of yajñas keep them always aloof from all kinds of contamination of sinful association in the material world. Others, who prepare food for self or sense gratification, are not only thieves but also the eaters of all kinds of sins. How can a person be happy if he is both a thief and sinful? It is not possible. Therefore, in order for people to become happy in all respects, they must be taught to perform the easy process of saṅkīrtana-yajña, in full Kṛṣṇa consciousness. Otherwise, there can be no peace or happiness in the world.

— vedicscriptures · exposition · source ↗