Verses with the word imnah in the Old Testament (2 verses):

1 Chronicles 7:30
The sons of Asher; Imnah, and Isuah, and Ishuai, and Beriah, and Serah their sister.

2 Chronicles 31:14
And Kore the son of Imnah the Levite, the porter toward the east, was over the freewill offerings of God, to distribute the oblations of the LORD, and the most holy things.