Of priests, O Arjuna, know Me to be the chief, Bṛhaspati, the lord of devotion. Of generals I am Skanda, the lord of war; and of bodies of water I am the ocean. (Bhagavad-gita As It Is 10.24)
…And of all bodies of water, the ocean is the greatest. These representations of Kṛṣṇa only give hints of His greatness. (from purport)
Full text and purport
Bhagavad-gītā As It Is
By His Divine Grace A. C. Bhaktivedanta Swami Prabhupāda
Chapter Ten, Text 24
purodhasāṁ ca mukhyaṁ māṁ
viddhi pārtha bṛhaspa