Verses with the word kore in the Old Testament (4 verses):

1 Chronicles 9:19
And Shallum the son of Kore, the son of Ebiasaph, the son of Korah, and his brethren, of the house of his father, the Korahites, were over the work of the service, keepers of the gates of the tabernacle: and their fathers, being over the host of the LORD, were keepers of the entry.

1 Chronicles 26:1
Concerning the divisions of the porters: Of the Korhites was Meshelemiah the son of Kore, of the sons of Asaph.

1 Chronicles 26:19
These are the divisions of the porters among the sons of Kore, and among the sons of Merari.

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.