Bhagavad Gita Chapter 7, Verse 21

यो यो यां यां तनुं भक्तः श्रद्धयार्चितुमिच्छति | तस्य तस्याचलां श्रद्धां तामेव विदधाम्यहम् ||

yo yo yāṁ yāṁ tanuṁ bhaktaḥ śraddhayārcitum icchati tasya tasyācalāṁ śraddhāṁ tām eva vidadhāmy aham

Whatever celestial form a devotee seeks to worship with faith, I steady the faith of such a devotee in that form.

Krishna reveals that He grants faith to those who worship other gods. 'Yo yo yāṁ yāṁ tanuṁ bhaktaḥ śraddhayārcitum icchati'—whatever form a devotee seeks to worship with faith. 'Tasya tasyācalāṁ śraddhāṁ tām eva vidadhāmy aham'—I grant firm faith to that devotee in that form. This verse shows that Krishna is the source of all faith—even faith in other gods comes from Krishna. He grants steady faith to those who worship other deities, enabling them to worship with conviction. This connects to verse 7.20's description of those who worship other gods and prepares for verse 7.22 where Krishna will describe how they obtain their desires.