In the fiftieth year of Azarias king of Juda reigned Phaceia the son of Manahem over Israel in Samaria two years.

In the fiftieth year of Azariah king of Judah hath Pekahiah son of Menahem reigned over Israel, in Samaria, two years,

In the fiftieth year of Azariah king of Judah, Pekahiah, the son of Menahem, became king over Israel in Samaria, ruling for two years.

In the fiftieth year of Azariah, the king of Judah: Pekahiah, the son of Menahem, reigned over Israel, in Samaria, for two years.

In the fiftieth year of Azariah king of Judah, Pekahiah the son of Menahem began to reign over Israel in Samaria,.... As it was in the thirty ninth of Azariah that his father began his reign, and he reigned ten years, they must end in the forty ninth of Azariah, and therefore there must be an interregnum of a year; perhaps the title of Pekahiah might be disputed, and it was a year before he could get settled on the throne:
and reigned two years; being slain by one of his captains, as after related.

PEKAHIAH'S REIGN. (2-Kings 15:22-24)
Pekahiah . . . son of Menahem began to reign--On comparing the date given with Azariah's reign, it seems that several months had intervened between the death of Menahem and the accession of Pekahiah, probably owing to a contest about the throne.

Reign of Pekahiah. - Pekahiah the son of Menahem began to reign "in the fiftieth year of Uzziah." As Menahem had begun to reign in the thirty-ninth year of Uzziah and reigned ten years, he must have died in the forty-ninth year of Uzziah; and therefore, if his son did not become king till the fiftieth year, some months must have elapsed between the death of Menahem and Pekahiah's ascent of the throne, probably cause, in the existing disorganization of the kingdom, the possession of the throne by the latter was opposed. Pekahiah reigned in the spirit of his predecessors, but only for two years, as his aide-de-camp (שׁלישׁ, see at 2-Samuel 23:8) Pekah conspired against him and slew him in the citadel (ארמון, see at 1-Kings 16:8) of the king's palace, with Argob and Aryeh. Argob and Aryeh were not fellow-conspirators of Pekah, who helped to slay the king, but principes Pekachijae, as Seb. Schmidt expresses it, probably aides-de-camp of Pekahiah, who were slain by the conspirators when defending their king. We must take the words in this sense on account of what follows: וגו חמשּׁים ועמּו, "and with him (Pekah) were fifty men of the Gileadites" (i.e., they helped him). The Gileadites probably belonged to the king's body-guard, and were under the command of the aides-de-camp of Pekah.