As we said, no special announcement, just the same thing about a bible study for the visitors and a "special" talk. Even active JWs know that is no longer "special" except that the same public talk outline will be used in the same week.
Large numbers gathered together are not proof of God's backing or approval.
2 Kings 10:18-25 (NWT)
18
Further, Je´hu collected all the people together and said to them: "A´hab, on the one hand, worshiped Ba´al a little. Je´hu, on the other hand, will worship him a great deal.
19 So now call all the prophets of Ba´al, all his worshipers and all his priests to me. Do not let a single one be missing, because I have a great sacrifice for Ba´al. Anyone that is missing will not keep living." As for Je´hu, he acted slyly, for the purpose of destroying the worshipers of Ba´al.
20 And Je´hu went on to say: "Sanctify a solemn assembly for Ba´al." Accordingly they proclaimed it.
21 After that Je´hu sent through all Israel, so that all the worshipers of Ba´al came in. And not a single one was left over that did not come in. And they kept coming into the house of Ba´al, and the house of Ba´al came to be full from end to end.
22 He now said to the one who was over the wardrobe: "Bring out garments for all the worshipers of Ba´al." So he brought the attire out for them.
23 Then Je´hu entered with Je·hon´a·dab the son of Re´chab into the house of Ba´al. He now said to the worshipers of Ba´al: "Search carefully and see that there may be here with YOU none of the worshipers of Jehovah, but only the worshipers of Ba´al."
24 Finally they came in to render up sacrifices and burnt offerings, and Je´hu himself stationed eighty men outside at his disposal and went on to say: "As for the man that escapes from the men whom I am bringing into YOUR hands, the one?s soul will go for the other?s soul."
25 And it came about that as soon as he finished rendering up the burnt offering, Je´hu immediately said to the runners and the adjutants: "Come in, strike them down! Do not let a single one go out." And the runners and the adjutants began to strike them down with the edge of the sword and to throw them out, and they kept going as far as the city of the house of Ba´al.
Judges 16:23-30 (NWT)
23
As for the Phi·lis´tine axis lords, they gathered together to sacrifice a great sacrifice to Da´gon their god and for rejoicing, and they kept saying: "Our god has given into our hand Samson our enemy!"
24 When the people got to see him, they at once gave way to praising their god, "because," said they, "our god has given into our hand our enemy and the devastator of our land and the one who multiplied our slain."
25
And it came about that because their heart was merry, they began to say: "Call Samson that he may offer us some amusement." So they called Samson out of the prison house that he might make sport before them; and they proceeded to stand him between the pillars.
26 Then Samson said to the boy that was holding him by his hand: "Do permit me to feel the pillars upon which the house is firmly established and let me lean against them."
27 (Incidentally, the house was full of men and women and all the Phi·lis´tine axis lords were there; and upon the roof there were about three thousand men and women who were looking on while Samson offered some amusement.)
28
Samson now called to Jehovah and said: "Sovereign Lord Jehovah, remember me, please, and strengthen me, please, just this once, O you the [true] God, and let me avenge myself upon the Phi·lis´tines with vengeance for one of my two eyes."
29
With that Samson braced himself against the two middle pillars upon which the house was firmly established, and got a grasp on them, one with his right and the other with his left hand.
30 And Samson proceeded to say: "Let my soul die with the Phi·lis´tines." Then he bent himself with power, and the house went falling upon the axis lords and upon all the people that were in it, so that the dead that he put to death in his own death came to be more than those he had put to death during his lifetime.
