Wisdom of today.

In the Bhagavad-gītā, three principal subjects have been explained by Lord Śrī Kṛṣṇa, namely karma-yoga, jñāna-yoga and bhakti-yoga, but one can reach the Vaikuṇṭha planets by the practice of bhakti-yoga only. The other two are incompetent in helping one reach the Vaikuṇṭhalokas, although they can, however, conveniently take one to the effulgent brahmajyoti, as described above.

https://vedabase.io/en/library/sb/2/2/17/

Note : Bhakti yoga or service to G-d can be done in every religion or tradition, wether Christian, Muslim, Jewish, Hindu, it doesn't matter. Chanting the names of G-d can be done in every religion.