It can be concluded that minimum, 607 is arguable.
Fisherman, but what is the point of defending 607?
For WTS/GB/JW's 607 = 2,520 years to 1914 which = 42-months to 1918 which was supposed to be a time period of cleansing/refinement/punishment from Jehovah which led to approving and appointing WTS/GB in 1919 to be F&DS.
But I have shown by use of the Scriptures and WTS publications that the 42-month period of cleansing/refinement/punishment from Jehovah did not take place in 1914-1918 and it is still future to occur. So, based on that, what justification is there for approving and appointing WTS/GB in 1919 to be F&DS?
Even if 607 date were correct, it would not matter to the fact that the 7th trumpet did not sound in 1914. The 42-months were not 1914- 1918.
Jehovah is not happy with his people currently and does not approve of them, that is why Jehovah brings the 42-month period upon them. The WTS/GB knows this and that is why they teach that that happen in 1914-1918 period, claiming that since then all is well with them and Jehovah. That he approves of them. But again, that is not the case, the 42-months were not back then they are still to come.
See WTS/GB and Scriptures say:
[5-15-15 WT p.29 – Who, then, is Gog of Magog? To answer that question, we need to search the Scriptures to find out who attacks God’s people. The Bible speaks not only of the attack by ‘Gog of Magog’ but also of the attack by “the king of the north” and of the attack by “the kings of the earth.” (Ezek. 38:2, 10-13; Dan. 11:40, 44, 45; Rev. 17:14; 19:19) Do these represent separate attacks? Not likely. The Bible is no doubt referring to the same attack under different names. Why can we draw that conclusion? Because the Scriptures tell us that all the nations of the earth will be involved in this final attack that prompts the war of Armageddon.—Rev. 16:14, 16.]
[Joel 2: 17 “Between the porch and the altar let the priests, the ministers of Jehovah, weep and say, ‘Do feel sorry, O Jehovah, for your people, and do not make your inheritance a reproach, for nations to rule over them. Why should they say among the peoples: “Where is their God?”’]
[Joel 3:1 “For, look! in those days and in that time, when I shall bring back the captive ones of Judah and Jerusalem, 2 I will also collect together all the nations and bring them down to the low plain of Je·hoshʹa·phat; and I will put myself on judgment with them there on account of my people and my inheritance Israel, whom they scattered among the nations; and they apportioned out my own land.]
[6-1-81 WT – We come now to part three, dealing with judgment and execution. (Joel 3:2-16, 19) It tells us why Jehovah is angry with the nations—because of the way they have treated his servants. They scattered them among the nations, making slaves of them. Also, they robbed Jehovah’s temple of its gold, silver and other desirable things, and brought these into their own temples. They did violence to the sons of Judah and shed innocent blood.]
[12-1-61 WT p.714 par. 8 – The worst plague of locusts and worms ever foretold to come was that one of which Jehovah’s prophet Joel gave forewarning. That plague was not threatened by Jehovah God without a just cause occasioned by his people. That is why in Joel’s prophecy Jehovah presents himself as at war with his own people. Here let Christendom who today claims to be God’s people take serious notice!]
[1-15-04 WT p.20 par.19 – As foretold in Ezekiel chapter 38, Satan will soon complete his role as “Gog of the land of Magog.” This will involve a worldwide attack on Jehovah’s people.]
[Ezekiel 39:23 And the nations will have to know that it was because of their error that they, the house of Israel, went into exile, on account of the fact that they behaved unfaithfully toward me, so that I concealed my face from them and gave them into the hand of their adversaries, and they kept falling, all of them, by the sword.’24 I dealt with them according to their uncleanness and their transgressions, and I hid my face from them.’]
[3-15-61 WT– Isaiah 29:4 reads: “And you must become low so that you will speak from the very earth, and as from the dust your saying will sound low. And like a spirit medium your voice must become even from the earth, and from the dust your own saying will chirp.”… These words show that God’s earthly organization would come under attack and would be reduced to a very low state by the enemies of God’s kingdom. God’s people would be, as it were, crushed to the earth, at the time of Gog’s attack upon them, so that what utterance they made, what vocal sounds they made, would come up from low down in their abasement.]
[Isaiah 29:2 I will bring distress on Ar´i·el, and there will be mourning and lamentation, and she must become to me as the altar hearth of God. 3 And I must encamp on all sides against you, and I must lay siege to you with a palisade and raise up against you siegeworks....13 And Jehovah* says: “For the reason that this people have come near with their mouth, and they have glorified me merely with their lips,+ and they have removed their heart itself far away from me,+ and their fear toward me becomes men’s commandment that is being taught,]