An hour is COMING and now IS

[tonychanyt]

Jesus encountered a Samaritan woman at the well in Jn 4:

21Jesus says to her, “Believe Me, woman, that an hour is coming when neither on this mountain nor in Jerusalem will you worship the Father.

is coming
ἔρχεται (erchetai)
Verb - Present Indicative Middle or Passive - 3rd Person Singular Strong's 2064: To come, go.

Rome destroyed the Jerusalem temple in 70 CE. Jews could no longer worship God there.

22 You worship what you do not know; we worship what we know, for salvation is of the Jews. 23 But an hour is coming

The "hour" might refer to the Pentecost when God poured his Spirit on believers.

and now is,

ἐστιν (estin)
Verb - Present Indicative Active - 3rd Person Singular
Strong's 1510

Jesus was inaugurating this new way of worship, which would be fully realized through His death, resurrection, and the coming of the Holy Spirit.

when the true worshipers will worship the Father in spirit and truth; for the Father also seeks such who worship Him. 24 God is Spirit, and it behooves those worshiping Him to worship in spirit and truth.”

What was this new style of worship?

It is worshipping God in the spiritual dimension, not confined by physical space and time.

What did Jesus mean by "an hour is coming and now is"?

He spoke of his ministry. He inaugurated a new approach to worshipping the Father. He taught his disciples to worship in spirit and truth. After his ascension, the Paraclete would teach his disciples to worship in spirit and truth. There was an immediate partial fulfillment in Jesus's ministry and complete fulfillment through his death on the cross.