Srimad Bhagavatam Canto 03, Chapter 12, Text 48

SB 3.12.48

sabda-brahmatmanas tasya
 vyaktavyaktatmanah parah
brahmavabhati vitato
 nana-sakty-upabrmhitah
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Brahma is the personal representation of the Supreme Personality of Godhead as the source of transcendental sound and is therefore above the conception of manifested and unmanifested. Brahma is the complete form of the Absolute Truth and is invested with multifarious energies.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
The post of Brahma is the highest responsible post within the universe, and it is offered to the most perfect personality of the universe. Sometimes the Supreme Personality of Godhead has to become Brahma when there is no suitable living being to occupy the post. In the material world, Brahma is the complete representation of the Supreme Personality of Godhead, and transcendental sound, pranava, comes from him. He is therefore invested with multifarious energies, from which all the demigods like Indra, Candra and Varuna are manifested. His transcendental value is not to be minimized, even though he exhibited a tendency to enjoy his own daughter. There is a purpose for the exhibition of such a tendency by Brahma, and he is not to be condemned like an ordinary living entity.
Srimad Bhagavatam Canto 03, Chapter 12, Text 47
Srimad Bhagavatam Canto 03, Chapter 12, Text 49