From Santanu, through the womb of his wife named Ganga, came Bhisma, the exalted, self-realized devotee and learned scholar

Expressions researched:
"Bhisma, the exalted, self-realized devotee and learned scholar"

Srimad-Bhagavatam

SB Canto 9

From Śāntanu, through the womb of his wife named Gaṅgā, came Bhīṣma, the exalted, self-realized devotee and learned

SB 9.22.18-19, Translation: After the dynasty of the moon-god comes to an end in this age of Kali, Devāpi, in the beginning of the next Satya-yuga, will reestablish the Soma dynasty in this world. From Bāhlīka [the brother of Śāntanu] came a son named Somadatta, who had three sons, named Bhūri, Bhūriśravā and Śala. From Śāntanu, through the womb of his wife named Gaṅgā, came Bhīṣma, the exalted, self-realized devotee and learned scholar.