पुरोधसां च मुख्यं मां विद्धि पार्थ बृहस्पतिम्। सेनानीनामहं स्कन्दः सरसामस्मि सागरः ॥

purodhasāṁ cha mukhyaṁ māṁ viddhi pārtha bṛihaspatim senānīnām ahaṁ skandaḥ sarasām asmi sāgaraḥ

And know Me, O Pârtha, of household priests the chief, Brihaspati: of generals I am Skanda; of lakes I am the ocean.

In plain words: Krishna tells Arjuna, called Partha, that among priests He is Brihaspati, the chief priest of the gods. Among army leaders, He is Skanda, the war god. Among bodies of water, He is the ocean.