en_tn/2ki/13/01.md

In the twenty-third year of Joash son of Ahaziah king of Judah

"After Joash had been ruling Judah for almost 23 years" (See: rc://en/ta/man/translate/translate-numbers)

reign over Israel in Samaria

"rule over the kingdom of Israel located in Samaria"

he reigned seventeen years

"Jehoahaz was king for 17 years"