Bhagavad-gītā 15.16
BG 15.16
Open the full passageद्वाविमौ पुरुषौ लोके क्षरश्चाक्षर एव च । क्षरः सर्वाणि भूतानि कूटस्थोऽक्षर उच्यते ॥१६॥
Sanskrit
dvāv imau puruṣau loke kṣaraś cākṣara eva ca kṣaraḥ sarvāṇi bhūtāni kūṭa-stho 'kṣara ucyate
Translation
There are two classes of beings, the fallible and the infallible. In the material world every living entity is fallible, and in the spiritual world every living entity is called infallible.