Srimad Bhagavatam Canto 11, Chapter 16, Text 01

SB 11.16.1

sri-uddhava uvaca
tvam brahma paramam saksad
 anady-antam apavrtam
sarvesam api bhavanam
Sri Uddhava said: My dear Lord, You are beginningless and endless, the Absolute Truth Himself, unlimited by anything else. You are the protector and life-giver, the destruction and creation of all things that exist.
Brahma means the greatest of all and the cause of everything. Uddhava here addresses the Lord as the paramam, or supreme brahma, because in His feature as Bhagavan the Lord is the highest feature of the Absolute Truth and the shelter of unlimited spiritual opulences. Unlike those of ordinary living entities, the Lord’s opulences cannot be restricted by time, and thus the Lord is anady-antam, without beginning or end, and apavrtam, unhindered by any superior or equal potency. The opulence of the material world is also resting within the Lord, who alone can protect, maintain, create and destroy the material world. In this chapter, Sri Uddhava inquires from the Lord about His spiritual and material opulences in order to refine his appreciation of the Lord’s position as the Absolute Truth. Even Lord Visnu, the ultimate creator of the material world, is an expansion of Lord Krsna, and thus Sri Uddhava wishes to fully appreciate the unique status of his personal friend.
Srimad Bhagavatam Canto 11, Chapter 16, Text 02