John 4:21-24 (NKJV)
21 Jesus said to her, “Woman, believe Me, the hour is coming when you will neither on this mountain, nor in Jerusalem, worship the Father. 22 You worship what you do not know; we know what we worship, for salvation is of the Jews. 23 But the hour is coming, and now is, when the true worshipers will worship the Father in Spirit and Truth; for the Father is seeking such to worship Him. 24 God is Spirit, and those who worship Him must worship in Spirit and Truth.”
On this Trinity Sunday, I would like us to consider the words that Jesus speaks in this text and the way that they help us understand new covenant worship. Jesus is anticipating two changes in the worship of God’s people. Unfortunately, these changes are frequently misinterpreted. Many imagine that Jesus is contrasting the external, formal worship of the OT period with the heartfelt, internal worship of the New. At one time people worshiped externally, now all worship is “in spirit and truth” – that is, heartfelt and genuine.
The difficulty faced by this interpretation is not the insistence that worship must be heartfelt and genuine. That is most certainly true. The difficulty is that this was no less true in the OT than it is in the New. David declares in the psalter, “Sacrifice and burnt offering you did not desire, a broken and contrite heart, O God, you will not despise.”Heartfelt, genuine worship was to characterize the OT no less than the New.
So what are the changes Jesus anticipated in His words to the Samaritan woman? There are two. First, Jesus insists that the corporate worship of the people of God would be decentralized. Remember that in the OT God’s people had a central sanctuary located at Jerusalem. As we will review today in the sermon, three times a year every male had to make a pilgrimage to Jerusalem, to Mount Zion, and worship at the central sanctuary, offering sacrifices, feasting with God’s people, honoring the Lord. The Samaritans, for their part, refused to acknowledge the centrality of Jerusalem but likewise had a central sanctuary at Mount Gerizim. Here the Samaritans had their collective feasts. The woman asks Jesus – “You’re a prophet; so which is it? Mount Zion or Mount Gerizim?”Jesus responds, “Neither! In the Christian era, during My reign, God’s people are not required to gather for corporate worship at a central sanctuary – whether in Gerizim or Jerusalem or Rome. Rather, wherever the people of God gather together in My Name and lift My Name on high, there is Mount Zion, there is the City of God, there is the central sanctuary.” In other words, Jerusalem in Israel is no longer the center of God’s dealings with man; the heavenly Jerusalem, Mount Zion, the Church is the center.
Second, Jesus informs us that not only would corporate worship be decentralized, it would be explicitly Trinitarian. When Jesus rose from the dead and sent forth His Spirit, the worship of God’s people was forever transformed. It became explicitly Trinitarian – worshiping the Father in Spirit – the very Spirit whom Jesus promised would come and lead His people into all righteousness – and in Truth – the very Truth who took on human flesh and declared to His disciples, “I am the way, the truth, and the life, no one comes to the Father except through Me.”
Today is Trinity Sunday, the Sunday the Church has historically emphasized the Triune nature of God. It is this that Jesus does in our text. Worshiping the Father in Spirit and Truth is not an exhortation to heartfelt, genuine worship – that exhortation had been given throughout the OT. Worshiping the Father in Spirit and Truth is to worship the Triune God: Father, Son, and Holy Spirit. And it was this transformation that Jesus anticipated and announced to the Samaritan woman. “The time is coming, and now is, when the true worshipers shall worship the Father in Spirit and in Truth.”

So what does this mean for us? It means that this morning as we gather together to worship the Father in Spirit and in Truth, as we gather to worship the Triune God, we are approaching the central sanctuary of God, the place where God dwells. Mount Zion is His dwelling place and it is this place to which we draw near every time we gather to worship the Lord together. Hebrews tells us, “But you have come to Mount Zion and to the city of the living God, the heavenly Jerusalem, to an innumerable company of angels, to the general assembly and church of the first born who are registered in heaven…” (Heb 12:22-23) And, like Isaiah, who entered the presence of God in the Temple, the first thing that should strike us is our own unworthiness – in ourselves, we are not worthy to be here. And so let us kneel and seek His forgiveness through Christ.