14. When Moses came down from Mount Sinai, what message did he bring to his fellow Israelites, but what questions could be asked?

¹⁴ After the Israelites had been delivered from Egyptian bondage, they gathered in the wilderness of Sinai. Moses went up into the mountain to receive instruction from Jehovah and came back with a message for the people. Moses reported that Jehovah had said: “This is what you are to say to the house of Jacob and to tell the sons of Israel, ‘You yourselves have seen what I did to the Egyptians, that I might carry you on wings of eagles and bring you to myself. And now if you will strictly obey my voice and will indeed keep my covenant, then you will certainly become my special property out of all other peoples, because the whole earth belongs to me. And you yourselves will become to me a kingdom of priests and a holy nation.”’ (Ex. 19:3-6)

Later, when Moses stretched out his hand over the Red Sea, the waters had opened up to make an escape route for them, while a supernatural cloud kept Israel separated from the pursuit forces of Egypt. The Israelites, who were now at Mount Sinai, had been there and seen it; they knew that Jehovah was using Moses to lead them.​—Ex. 14:19-22.

16. At Mount Sinai what further signs did Jehovah perform, and why?

¹⁶ Now at Mount Sinai Jehovah performed further signs, and the very reason he did it was, as he told Moses, “that the people may hear when I speak with you, and that in you also they may put faith to time indefinite.” (Ex. 19:9) It was an awe-inspiring display of the power of God. “Thunders and lightnings began occurring, and a heavy cloud upon the mountain and a very loud sound of a horn, so that all the people who were in the camp began to tremble. . . . And Mount Sinai smoked all over, due to the fact that Jehovah came down upon it in fire; and its smoke kept ascending like the smoke of a kiln, and the whole mountain was trembling very much. When the sound of the horn became continually louder and louder, Moses began to speak, and the true God began to answer him with a voice.” (Ex. 19:16-19) The millions who witnessed this spectacle had convincing proof that the things that Moses spoke and wrote in the name of Jehovah were really “the word of God.”​—Acts 7:35-38.

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At Mt. Sinai Jehovah performed signs. The mountain trembled and smoked all over. Millions saw and heard proof that what Moses made known in God’s name was the word of God