TD, in line with your comment about the illustration of the WT's literature coming from Jehovah's hands, page 243 of the Preparation book says 'Repeatedly the Lord, through his publications, has given warning to
these heady "elective elders" who have wanted merely to talk and exhibit
their own learning and express their own wise opinions and who decline
to get in line with God's organization and to proclaim the message of
his kingdom and to give glory to the Lord.' That statement in Rutherford's book sure seems to say that Rutherford's books and the other WT literature are the publications of the Lord (Jehovah and/or Jesus). See http://www.strictlygenteel.co.uk/preparation/preparation11.html . If the book is saying that then that would would seem to mean that all of the false predictions and other false teachings (including ones that the WT now acknowledges were false) were ascribed to being the Lord's. That is a very bad thing to do. I think some early WT literature even used an expression something to the effect of 'these dates are the Lord's dates' in regards to predictions of the WT. Maybe these kinds of statements should be understood as the WT making claims of being in effect a prophet and thus also evidence of the WT being a false prophet.
The sentence quoted above from Rutherford's book is an example of Rutherford criticizing those who were elective elders. On page 118 he makes a veiled reference to those who believed that the Russell's last will and testament should be strictly followed. In the reference Rutherford makes disparaging remarks not just about those who believed Russell's will should be fully adhered to, but he also disparages Russell. Note that on pages 118 - 119 Rutherford says the following.
"Prior to 1916 those in a covenant with Jehovah were in a prosperous condition for that time. The great adversity and captivity to Satan's organization came in 1917 and 1918. Thereafter the dreamers, who are opposers, wept and howled, and still weep and howl, because 'the last will and testament of a dead man was not strictly followed', assuming that any man could put a restriction upon God's work. Jehovah by his prophet says to them that instead of being sticklers for adhering to the words and opinions of a deceased man they should study the prophecies, which were aforetime written for the comfort and aid and instruction of God's people, and that they should feed upon these words of the Lord and be diligent to obey his commandments. The Lord caused the prophet Isaiah to write concerning the same class. (Isa. 58:4,5) The Watchtower called attention to this prophecy and urged upon the lukewarm and the weeping ones to awaken and become obedient to the commandments of the Lord. But they continue to go on in their own way and give no heed to the Word of God. — The Watchtower, 1929, pages 131,147.
Now the time has come to preach the truth and the remnant must give the strictest heed to all the commandments of the Lord. (Acts 3: 22, 23) If they will avert the great calamity of going into captivity to Satan's organization and therefore falling at Armageddon, they must follow closely the Word of God as set forth by his prophets and which Word was written for the
special aid and comfort of the temple class. It behooves every one of the temple class to now walk circumspectly and render full obedience unto the Lord.God's covenant people are commissioned to declare the judgments previously written and to render justice unto others. "AND THE WORD OF THE LORD CAME UNTO ZECHARIAH, SAYING, THUS SPEAKETH THE LORD OF HOSTS, SAYING, EXECUTE TRUE JUDGMENT, AND SHEW MERCY AND COMPASSIONS EVERY MAN TO HIS BROTHER." (7 : 8, 9) Those who have agreed to do the will of God are admonished that they should not show partiality or exalt the name of man. (Ps. 50:20; Luke 16:15)'