BG Chap 10 - The vibhūtis of Kṛṣṇa - 61 thru 65
(61): Among the sāmas, special hymns based on the words of Ṛg Veda, Kṛṣṇa is Bṛhad Sāma, which starts with tvām iddhi havāmahe, and is chanted at the end of ceremonies praising Indra for his having great powers.
(62): Among verses endowed with regular meter and lines, Kṛṣṇa is the gāyatrī verse, being most excellent because it gives second birth to the three higher castes, and also it is regarded as non different from Brahman. There are many verses in gāyatrī meter. The verse in gāyatrī meter which is famous as the initiation mantra for the second born is also called gāyatrī.
(63): Among months, He is Mārgaśīrṣa, when there is a supply of new grains.
(64): Among seasons He is the flower bearing spring. In spring there are many festivals celebrating Kṛṣṇa.
(65): Kṛṣṇa is the gambling of the cheats, who gamble with dice and lose everything. As the Supreme, Kṛṣṇa can be more deceitful than any mere man. If Kṛṣṇa chooses to deceive a person, no one can surpass Him in His deceit. His greatness is not simply one-sided-it is all-sided.