Bhagavad-Gita: Chapter 7, Verse 29

Rudra Vaisnava Sampradaya:

Visnuswami

Sridhara Swami's Commentary

Therefore those who have purified their consciousness after innumerable lifetimes performing meritorious spiritual activities get the association of a pure devotee of the Supreme Lord Krishna and have the opportunity to exclusively worship Him. Becoming His devotee they come to know all that is to be known are completely satisfied. This is being stated with the words jara-marana-moksaya meaning desiring freedom from old age and death. Knowledgeable of the supreme brahman or the spiritual substratum pervading all existence, cognisant of the atma or eternal soul and aware that it is distinct from the physical body of every sentient being; such people take exclusive shelter of the Supreme Lord Krishna and diligently apply themselves in His exclusive service following the instructions of the spiritual master in one of the four authorised Vaisnava parampara or disciplic succession.

Brahma Vaisnava Sampradaya:

Madhvacarya
There is no commentary for this verse.

Sri Vaisnava Sampradaya:

Ramanuja

Ramanuja's Commentary

Deliverance from old age, disease and death signifies the disenchantment and disjunction from material desires and connections by achieving atma tattva or realisation of the soul and comprehending its distinctness from physicality replacing it with spiritual knowledge and connections. Those who seek and worship the Supreme Lord Krishna with this objective have to understand what brahman or the spiritual substratum pervading all existence which refers to the arttas or aspirants in verse 16. Have to know what adhyatmam or the individual souls which refers to the jijnasur or soul seekers in verse 16 and must know karma cakhilam or the different kinds of fruitive actions with their subsequent reactions this refers to the jnani or seeker of spiritual knowledge in verse 16.

Kumara Vaisnava Sampradaya:

Nimbaditya

Kesava Kasmiri's Commentary

Thereafter worshipping the Supreme Lord Krishna such enlightened devotees become blessed and acquire knowledge of everything to be known. This is specified by the words te brahma tad viduh krtsnam meaning they get knowledge of the brahman the spiritual substratum pervading all existence and everything else of consequence. They with pure hearts who take complete refuge in the Supreme Lord being free from the sway of duality and any ideas of rewards for the actions they perform, even for moksa or liberation from the cycle of birth and death.. Such enlightened beings understand the entire field of action to be performed in the material manifestation meaning what is to be done and what is not to be done and the total purpose of embodied existence as a human being.