Two things are being compared here. First, the waters of Shiloah, and second, the king of Syria and the king of Israel (the northern kingdom).
The people reject the waters of Shiloah and prefer the kings of Syria and Israel. Remember that the nation of Israel is the northern kingdom or the ten tribes that revolted and split off on their own, from Judah. That split off from Judah was a rejection of Gods chosen line of royalty, David, and a preference for a line of their own choosing.
Syria likewise represents a preference for evil and all anti-God beliefs. Syria being a foreign nation and pursuing all sorts of worldly beliefs that are anti-truth and anti-God and anti-Gods plan.
Shiloah means to send forth, or to extend out, to be conducted.
Shiloah is a pool of water that receives the water supply of Jerusalem from various water sources within Jerusalem. The water issues from a fountain called the Virgins Fountain, and runs by way of an aqueduct to a pool that is in the southeast part of the city. Late in the 8th century B.C., Hezekiah excavated an underground tunnel aqueduct to carry the water by a more secure route.
The flowing of the waters of Shiloah come to represent the word of God, the government or policies of God, and ultimately the plan of God, which plan includes all that God intends for history.
Rejection of the waters means rejection of Gods plan from the concept of the virgin birth to salvation, to the spiritual life and its function, to everything else that is scriptural.
God is truth. A rejection of truth means a preference for lies and all that is false.
A preference for the king of Syria means a preference for all that is outside of Gods family, the unbelieving world, or for anything and everything that is non-spiritual.
A preference for the king of the northern kingdom is a rejection of God and His plan from believers or those who are inside of salvation but reject it. As that northern kingdom represents the rejection of the line of David and therefore the Messiah, so then their choice is for their own plan rather than Gods plan.
Whereas, the entire nation of Israel as it stood under David and Solomon, represented Gods plan in its entirety. So then when that nation split into two nations, the northern one keeping the name of Israel, and is also called Samaria, but in effect perpetuating the fraud of name only, and then the southern kingdom taking on the name of Judah which retained the Davidic line and perpetuated the original intent of God plan.
Both believers and unbelievers alike can reject God, and in so doing, even though they have different destinies, they both imitate that same rejection and pattern of evil life.
Shiloah represents the continual flowing of Gods plan and policies and principles and mandates and so forth. That flowing represents the continual flow of doctrine and policy within the city of Jerusalem, also called the city of peace, which represents the at rest status of a mature believer who functions continually with doctrine flowing within and throughout his soul.
Therefore, because truth has been rejected in preference for the lies of the world, then a great invasion in going to occur, and that invasion is simply an application of the jungle rules that govern a world without truth. And in the jungle, eventually everyone, the predator and the prey, lose.
End of study