Settling every Bible based question or studying every Bible based topic can hardly be resolved with a single verse every time, but there are times when a single verse is so clear and concise in what is being said, the point cannot be missed by any honest Bible student.
For example, take the question and topic of Israel’s perpetual right to territory based on the promise made to Abraham. This subject has created or heavily contributed to many fanciful doctrines including premillenialism and has led to numerous debates. More often than not, the issue comes down to whether or not God kept the word he gave to Abraham (Genesis 12:1-3, 13:14-15; Hebrews 11:9). But there is no question as to whether or not God has kept his word. Joshua 21:45 says, “Not a word failed of any good thing which the Lord had spoken to the house of Israel. All came to pass.”
Not a word of God failed to come to pass. Israel received the good things of God … even the land given according to promise. The context of Joshua 21:43-45 shows this to be true. But Israel became more obsessed with being a physical nation than a spiritual people, and through the pride and desire to be a physical nation and physical descendant of Abraham they failed to be the spiritual nation and spiritual descendant of Abraham that made their covenant with God what it was (Deuteronomy 6:1-4; Matthew 3:9; Galatians 3:26-29, 4:22-31; John 8:31-47; Acts 3:19-23).
God kept his word with Abraham, Isaac and Jacob, but Israel, as a nation, failed to keep their word with God and thus forfeited their right to the promise made to Abraham. Such a position has nothing to do with “gentile arrogance” or prejudice against the nation of Israel (Romans 11:18-23). It is simply an answer to a complex spiritual issue than can be made easier to understand with the help and clarity of a single verse.