Son of Asa; reigned 25 years in Yerushalayim
1 Kings 22:43 — 'he walked in all the ways of Asa his father... and did that which was right in the eyes of Yah'
Sent Levites and priests throughout Yehudah to teach the Torah (2 Chronicles 17:7–9)
Strengthened Yehudah militarily and was at peace with Israel — but allied by marriage with the house of Achav (his son Yoram married Achav's daughter Atalyah, 2 Kings 8:18, 26)
Joined Achav, king of Israel, in the disastrous campaign against Aram at Ramot-Gilead, where Achav was killed (1 Kings 22)
2 Chronicles 20 — when Moav, Ammon, and others came against Yehudah, Yehoshafat proclaimed a fast and prayed publicly; Yah caused the invading armies to destroy each other, and Yehudah took three days to gather the spoil
Rebuked by the prophet Yehu ben Chanani for allying with Achav (2 Chronicles 19:2), and again by Eliezer for a failed shipping venture undertaken jointly with Achazyahu of Israel (2 Chronicles 20:35–37)
Named in Matthew 1:8 (as 'Jehoshaphat') in the line to Yeshua
“He walked in the ways of Asa his father and did right — yet allied by marriage with the house of Achav”
Traditional note: 1 Kings 22:42 names Yehoshafat's mother as 'Azuvah, daughter of Shilchi' — named in scripture but not modeled as a separate entry in this dataset (see the general note on queen mothers in 'rechavam' and 'maakah-bat-avshalom'); documented here for completeness rather than silently omitted. Yehoshafat's marriage alliance with the house of Achav — his son Yoram married Achav and Izevel's daughter Atalyah — becomes critically important two generations later (see the notes on 'yoram-melech-yehudah' and 'achazyahu-melech-yehudah'), nearly extinguishing the entire Davidic line under Atalyah's usurpation (2 Kings 11).
