In a Fang oral adaptation the Hebrew that is translated in English as “the barren has borne seven” is translated in a culturally specific way with “The barren woman has become the mother of nine.”
Case / Case (2019) explain: “Much like the number 7 in Israelite culture, the number 9 signifies completion and perfection to the Fang. For example, in 1 Samuel 2:5 Hannah says: ‘The barren has borne seven.’ [The oral interpreter] Acacio, understanding the poetic, symbolic context, said, ‘The barren woman has become the mother of nine.'”
See also seven times.