which mount?

This is a portion of the text I'm studying preparing for re:Generation Sunday night. This week I'm teaching on worship, and want to see how Jesus teaches about worship:
"Our fathers worshiped on this mountain, but you say that in Jerusalem is the place where people ought to worship." Jesus said to her, "Woman believe me, the hour is coming when neither on this mountain nor in Jerusalem will you worship the Father. You worship what you do not know; we worship what we know, for salvation is from the Jews. But the hour is coming, and is now here, when the true worshipers will worship the Father in spirit and truth, for the Father is seeking such people to worship him. God is spirit, and those who worship him must worship in spirit and truth." The woman said to him, "I know that Messiah is coming (he who is called Christ). When he comes, he will tell us all things." Jesus said to her, "I who speak to you am he."
John 4:20-26

"This people honors me with their lips, but their heart is far from me;
In vain do they worship me, teaching as doctrines the commandments of men."
Isaiah 29:13, quoted by Jesus in Matthew 15:8-9
Who do I worship?