en_tn/1ki/14/25.md

in the fifth year of King Rehoboam

This refers to the fifth year of Rehoboam's reign as king. Alternate translation: "in the fifth year that Rehoboam was king" (See: rc://en/ta/man/translate/figs-explicit)

in the fifth year

"in year 5" (See: rc://en/ta/man/translate/translate-ordinal)

Shishak king of Egypt came up against Jerusalem

"Shishak king of Egypt" represents himself along with the Egyptian army. Alternate translation: "Shishak king of Egypt, and his army with him, came up against Jerusalem" (See: rc://en/ta/man/translate/figs-synecdoche)

Shishak

This is the name of a man. See how you translated this in 1 Kings 11:40. (See: rc://en/ta/man/translate/translate-names)

came up against

This is an idiom that means marched against or attacked. Alternate translation: "came to attack" (See: rc://en/ta/man/translate/figs-idiom)