Bhagavad Gītā Chapter Seventeen verse 2

śrībhagavān uvāca |

trividhā bhavati śraddhā dehināṃ sā svabhāvajā |
sāttvikī rājasī cāiva tāmasī ceti tāṃ śṛṇu ||

śrī - blessedbhagavat - divineśraddhā - having faith, believing in, trusting, faithful, having confidencesvabhāva - innate or inherent disposition; own condition or state of beingsattva - clarity; the quality of purityrajas - excitingtamas - obscuring; mental darkness, ignorance, illusion, error; deprived of the eye's light or sight; darkness, gloom