Bhagavad Gita Chapter 17, Verse 2

श्री भगवानुवाच | त्रिविधा भवति श्रद्धा देहिनां सा स्वभावजा | सत्त्वानुरूपा सर्वस्य श्रद्धा भवति भारत ||

śrī bhagavān uvāca trividhā bhavati śraddhā dehināṁ sā svabhāva-jā sattvānurūpā sarvasya śraddhā bhavati bhārata

The Supreme Lord said: The faith of embodied beings is of three kinds, born of their nature. It is sattvic, rajasic, or tamasic. Hear Me explain this, O descendant of Bharata.

Krishna answers Arjuna's question directly: faith (śraddhā) is 'trividhā'—three kinds. More importantly, faith is 'svabhāva-jā'—born of nature. Your faith isn't random or arbitrary—it reflects who you are. 'Sattvānurūpā sarvasya'—everyone's faith is according to their nature (sattva here means 'nature' in general, not just the sattva guna). This is profound: you don't choose your faith—your nature chooses it. If your nature is dominated by sattva (goodness), your faith is sattvic. If rajas (passion) dominates, your faith is rajasic. If tamas (ignorance) dominates, your faith is tamasic. This explains why people with similar backgrounds have different faiths—their natures differ. Understanding this helps you recognize your own faith and work toward sattvic faith, which leads to spiritual growth.