Jn.4:23,24 – But a time is coming, and even now has arrived, when the true worshipers will worship the Father in spirit and truth; for such people the Father seeks to be His worshipers. God is spirit, and those who worship Him must worship in spirit and truth.
I find this to be an almost embarrassing passage for me. Think about this with me for a moment, God is actually “seeking worshippers”? You think of His greatness, His infinite nature, and His omnipotence and He actually has to search for someone to worship Him. People worship football players, rappers, rock musicians, and movie stars and God is seeking worshippers? Something is not quite right about that. I guess the part that causes all of this to make some sort of sense is the part where Jesus says “God is a Spirit. They that worship Him must worship in Spirit and in truth”. That explains everything! Only spiritual people who have been born of the Spirit have the insight and capacity to worship God. The rest live in the world of the flesh and can only worship carnal people. Here is how Matthew Henry explains this verse.
“Because the Father seeketh such worshippers of him. This intimates that such worshippers are very rare, and seldom met with. The gate of spiritual worshipping is strait. That such worship is necessary, and what the God of heaven insists upon. When God comes to enquire for worshippers, the question will not be, “Who worshipped at Jerusalem?” but, “Who worshipped in spirit?” That will be the touchstone. That God is greatly well pleased with and graciously accepts such worship and such worshippers. I have desired it. That there has been, and will be to the end, a remnant of such worshippers; his seeking such worshippers implies his making them such. God is in all ages gathering in to himself a generation of spiritual worshippers.”
So that explains it, spiritual worshippers are rare. They are created by the work of the Holy Spirit. The woman in this story would be the least likely candidate in the New Testament world to be a worshipper but that is what she became. That was why Jesus came to Samaria, He was looking for the least likely candidates to join His band of worshippers. Today He is still at it, He is looking for worshippers to worship Him by the power of the Holy Spirit.