B.G 17.03
sattvānurūpā sarvasya śraddhā bhavati bhārata। śraddhāmayo'yaṃ puruṣo yo yacchraddhaḥ sa eva saḥ ॥3॥
O Bhārata, the faith of everyone is in accordance with their true nature. A person is made of faith; whatever faith they have, they are indeed that.
Gīta Bhāshya 17.03
The word 'sattvānurūpā', i.e. one's true nature, is nothing but that which is in accordance with their consciousness (chitta). If one has sattvic faith, they are considered sattvic, and so forth.
sattvānurūpā cittānurūpā।
The word 'sattvānurūpā', i.e. one's true nature, is nothing but that which is in accordance with their consciousness.
yo yacchraddhaḥ sa eva saḥ sāttvikaśraddhaḥ sāttvikaḥ ityādi ॥3॥
The phrase 'yo yacchraddhaḥ sa eva saḥ' i.e. 'a person is defined by the nature of their faith' implies - if one has sattvic faith, they are considered sattvic, and so forth.