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

2 Kings 15:14
For Menahem the son of Gadi went up from Tirzah, and came to Samaria, and smote Shallum the son of Jabesh in Samaria, and slew him, and reigned in his stead.

2 Kings 15:17
In the nine and thirtieth year of Azariah king of Judah began Menahem the son of Gadi to reign over Israel, and reigned ten years in Samaria.