For someone who said they read the Bible over and over again you fail to understand that the New Testament takes precedent our the Old Testament. We're no longer required to become Jews and obey the 613 parts of the Jewish law. We're required to repent of our sins, accept what Jesus did on the cross to pay for those sins, and accept Jesus as our Lord.

Yes, it matters who God was talking to. God made different promises to the Israelites and different promises to the church. To the Israelites God said that if they followed his commands no womb would be unfruitful and he wouldn't inflict the diseases on them that he inflicted on the Egyptians. It should be obvious that some Christian couples are childless and Christians can suffer the same diseases as unbelievers. God promised Israel prosperity in exchange for obedience. He doesn't make that some promise to Christians.

We don't have to follow the Jewish dietary laws and other customs. We don't have to observe the Sabbath. Paul makes that clear in Romans.

(Romans 14:5-6 NIV) One man considers one day more sacred than another; another man considers every day alike. Each one should be fully convinced in his own mind. {6} He who regards one day as special, does so to the Lord. He who eats meat, eats to the Lord, for he gives thanks to God; and he who abstains, does so to the Lord and gives thanks to God.

No, not all prophesy up until Revelation has been fulfilled. There are many prophecies about Jesus and Israel that are waiting fulfillment. Here are just a few:

(Isaiah 9:6-7 NIV) For to us a child is born, to us a son is given, and the government will be on his shoulders. And he will be called Wonderful Counselor, Mighty God, Everlasting Father, Prince of Peace. {7} Of the increase of his government and peace there will be no end. He will reign on David's throne and over his kingdom, establishing and upholding it with justice and righteousness from that time on and forever. The zeal of the LORD Almighty will accomplish this.

(Daniel 7:13-14 NIV) "In my vision at night I looked, and there before me was one like a son of man, coming with the clouds of heaven. He approached the Ancient of Days and was led into his presence. {14} He was given authority, glory and sovereign power; all peoples, nations and men of every language worshiped him. His dominion is an everlasting dominion that will not pass away, and his kingdom is one that will never be destroyed.

(Ezekiel 38:2-9 NIV) "Son of man, set your face against Gog, of the land of Magog, the chief prince of Meshech and Tubal; prophesy against him {3} and say: 'This is what the Sovereign LORD says: I am against you, O Gog, chief prince of Meshech and Tubal. {4} I will turn you around, put hooks in your jaws and bring you out with your whole army--your horses, your horsemen fully armed, and a great horde with large and small shields, all of them brandishing their swords. {5} Persia, Cush and Put will be with them, all with shields and helmets, {6} also Gomer with all its troops, and Beth Togarmah from the far north with all its troops--the many nations with you. {7} "'Get ready; be prepared, you and all the hordes gathered about you, and take command of them. {8} After many days you will be called to arms. In future years you will invade a land that has recovered from war, whose people were gathered from many nations to the mountains of Israel, which had long been desolate. They had been brought out from the nations, and now all of them live in safety. {9} You and all your troops and the many nations with you will go up, advancing like a storm; you will be like a cloud covering the land.

(Ezekiel 38:21-23 NIV) I will summon a sword against Gog on all my mountains, declares the Sovereign LORD. Every man's sword will be against his brother. {22} I will execute judgment upon him with plague and bloodshed; I will pour down torrents of rain, hailstones and burning sulfur on him and on his troops and on the many nations with him. {23} And so I will show my greatness and my holiness, and I will make myself known in the sight of many nations. Then they will know that I am the LORD.'

You're joking about the Seventh Day Adventist Church being a true church, aren't you? They're a cult. They consider Ellen G. White's writings to be equal to scripture.