Why did the King approach the nation of Israel with the kingdom message?
The King approached Israel with the kingdom message because His presence made the Kingdom of Heaven at hand. His whole scope of approaching the nation was in fulfillment of the covenants—what had been promised. Wherever the King is, the Kingdom is, so the promised Kingdom was near.
Les teaches that the Kingdom of Heaven was at hand because the King was present. He explains that wherever the King is, the Kingdom is, and now the King was there, with the Kingdom of Heaven just over the horizon. This was the whole scope of His approaching the nation of Israel, yet it was in fulfillment of the covenants and what had been promised.