Soul. As the principle of life, pneúma means much the same as psychḗ.
What does it mean to worship God in Spirit?
Worship in Truth
Truth is ἀλήθεια aletheia
“truth here means ‘hiding nothing’”
What does it mean to worship God in truth?
Main Principle
Write the main principle in your own words
the point is that with the coming of the ‘hour’ the distinction between true worshippers and all others turns on factors that make the ancient dispute between the conflicting claims of the Jerusalem temple and Mount Gerizim obsolete. Under the eschatological conditions of the dawning hour, the true worshippers cannot be identified by their attachment to a particular shrine, but by their worship of the Father in spirit and truth.
D. A. Carson, The Gospel according to John, The Pillar New Testament Commentary (Leicester, England; Grand Rapids, MI: Inter-Varsity Press; W.B. Eerdmans, 1991), 224–225.