Lucky I checked,only an hour this time:
6. From the beginning of temple construction to the captivity of Judah = 420 years
We will prove this number to be correct by two different methods. The first method will be to add up the years of the reigns of the kings of Judah. This information is found in the books of 1 & 2 Kings as well as in the book of 2 Chronicles.
Solomon had already reigned 4 years when he began construction on the temple. Since he reigned a total of 40 years, we will count 36 years for the time he reigned after starting the temple.
Solomon (36)
Rehoboam (17)
Abijah (3)
Asa (41)
Jehoshaphat (25)
Jehoram (8)
Ahaziah (1)
Athaliah (7)
Joash (40)
Amaziah (29)
Uzziah (52)
Jotham (16)
Ahaz (16)
Hezekiah (29)
Manasseh (55)
Amon (2)
Josiah (31)
Jehoahaz (3 months)
Jehoiakim (11)
Jehoiachin (3 months)
Total = 420 years (419.5)
2Ki 24:8 Jehoiachin was eighteen years old when he began to reign, and he reigned in Jerusalem three months. And his mother's name was Nehushta, the daughter of Elnathan of Jerusalem.
2Ki 24:15 And he carried away Jehoiachin to Babylon, and the king's mother, and the king's wives, and his officers, and the mighty of the land, those carried he into captivity from Jerusalem to Babylon.
2Ki 24:16 And all the men of might, even seven thousand, and craftsmen and smiths a thousand, all that were strong and apt for war, even them the king of Babylon brought captive to Babylon.
Now we will double check this calculation using the book of Ezekiel.
Eze 1:1 Now it came to pass in the thirtieth year, in the fourth month, in the fifth day of the month, as I was among the captives by the river of Chebar, that the heavens were opened, and I saw visions of God.
Eze 1:2 In the fifth day of the month, which was the fifth year of king Jehoiachin's captivity,
Eze 1:3 The word of the LORD came expressly unto Ezekiel the priest, the son of Buzi, in the land of the Chaldeans by the river Chebar; and the hand of the LORD was there upon him.
In these verses the timing of this portion of Ezekielâs prophecy is expressly given as being in the 5th year of Jehoiachinâs captivity. If we add those 5 years to the 420 years from the beginning of the templeâs construction we come up with 425 years.
420 + 5 = 425
Eze 4:5 For I have laid upon thee the years of their iniquity, according to the number of the days, three hundred and ninety days: so shalt thou bear the iniquity of the house of Israel.
Eze 4:6 And when thou hast accomplished them, lie again on thy right side, and thou shalt bear the iniquity of the house of Judah forty days: I have appointed thee each day for a year.
In these verses God is saying that the iniquity of the house of Israel (the northern kingdom as opposed to Judah, the southern kingdom) began 390 years earlier. This is when Jeroboam set up two golden calves and turned the nation of Israel away from the LORD to worship these new gods.
1Ki 12:26 And Jeroboam said in his heart, Now shall the kingdom return to the house of David:
1Ki 12:27 If this people go up to do sacrifice in the house of the LORD at Jerusalem, then shall the heart of this people turn again unto their lord, even unto Rehoboam king of Judah, and they shall kill me, and go again to Rehoboam king of Judah.
1Ki 12:28 Whereupon the king took counsel, and made two calves of gold, and said unto them, It is too much for you to go up to Jerusalem: behold thy gods, O Israel, which brought thee up out of the land of Egypt.
1Ki 12:29 And he set the one in Bethel, and the other put he in Dan.
1Ki 12:30 And this thing became a sin: for the people went to worship before the one, even unto Dan.
1Ki 14:16 And he shall give Israel up because of the sins of Jeroboam, who did sin, and who made Israel to sin.
1Ki 15:26 And he did evil in the sight of the LORD, and walked in the way of his father, and in his sin wherewith he made Israel to sin.
1Ki 15:30 Because of the sins of Jeroboam which he sinned, and which he made Israel sin, by his provocation wherewith he provoked the LORD God of Israel to anger.
1Ki 15:34 And he did evil in the sight of the LORD, and walked in the way of Jeroboam, and in his sin wherewith he made Israel to sin.
1Ki 16:2 Forasmuch as I exalted thee out of the dust, and made thee prince over my people Israel; and thou hast walked in the way of Jeroboam, and hast made my people Israel to sin, to provoke me to anger with their sins;
1Ki 16:26 For he walked in all the way of Jeroboam the son of Nebat, and in his sin wherewith he made Israel to sin, to provoke the LORD God of Israel to anger with their vanities.
1Ki 21:22 And will make thine house like the house of Jeroboam the son of Nebat, and like the house of Baasha the son of Ahijah, for the provocation wherewith thou hast provoked me to anger, and made Israel to sin.
1Ki 22:52 And he did evil in the sight of the LORD, and walked in the way of his father, and in the way of his mother, and in the way of Jeroboam the son of Nebat, who made Israel to sin:
2Ki 3:3 Nevertheless he cleaved unto the sins of Jeroboam the son of Nebat, which made Israel to sin; he departed not therefrom.
2Ki 10:29 Howbeit from the sins of Jeroboam the son of Nebat, who made Israel to sin, Jehu departed not from after them, to wit, the golden calves that were in Bethel, and that were in Dan.
2Ki 10:31 But Jehu took no heed to walk in the law of the LORD God of Israel with all his heart: for he departed not from the sins of Jeroboam, which made Israel to sin.
2Ki 13:2 And he did that which was evil in the sight of the LORD, and followed the sins of Jeroboam the son of Nebat, which made Israel to sin; he departed not therefrom.
2Ki 13:6 Nevertheless they departed not from the sins of the house of Jeroboam, who made Israel sin, but walked therein: and there remained the grove also in Samaria.)
2Ki 13:11 And he did that which was evil in the sight of the LORD; he departed not from all the sins of Jeroboam the son of Nebat, who made Israel sin: but he walked therein.
2Ki 14:24 And he did that which was evil in the sight of the LORD: he departed not from all the sins of Jeroboam the son of Nebat, who made Israel to sin.
2Ki 15:9 And he did that which was evil in the sight of the LORD, as his fathers had done: he departed not from the sins of Jeroboam the son of Nebat, who made Israel to sin.
2Ki 15:18 And he did that which was evil in the sight of the LORD: he departed not all his days from the sins of Jeroboam the son of Nebat, who made Israel to sin.
2Ki 15:24 And he did that which was evil in the sight of the LORD: he departed not from the sins of Jeroboam the son of Nebat, who made Israel to sin.
2Ki 15:28 And he did that which was evil in the sight of the LORD: he departed not from the sins of Jeroboam the son of Nebat, who made Israel to sin.
2Ki 17:21 For he rent Israel from the house of David; and they made Jeroboam the son of Nebat king: and Jeroboam drave Israel from following the LORD, and made them sin a great sin.
There is absolutely no doubt that this is the event that God was referring to as the beginning of the iniquity of the house of Israel.
Since God told Ezekiel that the iniquity of the house of Israel had gone on for 390 years (Ezekiel 4:5), we will subtract that from the 426 years that had passed since the beginning of the templeâs construction (426 because we must include the year that Ezekiel would spend on his side â 390 days is a just a little over 1 year)
425 +1 = 426
426 â 390 = 36
Since the temple began to be constructed during the 4th year of Solomonâs 40 year reign, and Jeroboam set up the golden calves during the year after Solomonâs reign, these two events are separated by 36 years.
40 â 4 = 36
426 â 390 = 36
Amazing!
This proves that we have done our math correctly, and that 420 years passed between the beginning of the templeâs construction and the carrying away of the children of Judah into Babylon.