Revelation 21:3 from the King James Version (KJV) of the Bible states, "And I heard a great voice out of heaven saying, Behold, the tabernacle of God is with men, and he will dwell with them, and they shall be his people, and God himself shall be with them, and be their God."

This verse comes from the book of Revelation, which is the last book of the Bible and serves as a prophetic vision given to the apostle John. The book of Revelation is filled with vivid imagery and symbolic language, and it describes the end times and the establishment of a new heaven and a new earth. In this particular verse, John hears a voice from heaven declaring that the tabernacle of God will be with mankind, and that God will dwell with them.

One of the central themes of this verse is the idea of the presence of God with his people. The "tabernacle of God" refers to the presence of God among his people, just as the tabernacle in the Old Testament was a physical dwelling place for God among the Israelites. This verse speaks of a future time when God's presence will be fully and completely with humanity, with no barriers or separation between God and his people. This speaks to the ultimate fulfillment of God's promise to be with his people and to never leave them or forsake them.

The imagery of God dwelling with his people is deeply significant in the Christian faith. It speaks to the intimacy and closeness of the relationship between God and his people. Throughout the Bible, God's desire has always been to dwell among his people and to be in relationship with them. This theme of God dwelling with humanity is also seen in the incarnation of Jesus Christ, who came to earth as God in human form to dwell among us. The ultimate expression of God's presence among humanity is seen in the person of Jesus Christ, who is the embodiment of God's love and grace.

The verse also emphasizes the idea of God's people belonging to him and being in close relationship with him. The language of "they shall be his people" speaks to the covenant relationship between God and his chosen ones. This language reflects the Old Testament understanding of God as the God of Israel and the Israelites as his chosen people. In the New Testament, this understanding is expanded to include all who believe in Jesus Christ as the chosen people of God. This verse speaks to the unity and connectedness of God's people with him, as well as with each other.

Furthermore, the verse declares that God himself will be with his people and be their God. This emphasizes the personal nature of God's relationship with his people. It speaks to the idea of God as a loving and caring Father, who is intimately involved in the lives of his children. This language also echoes the Old Testament promises of God's faithfulness and provision for his people. It conveys the idea that God will be present in every aspect of the lives of his people, guiding, protecting, and providing for them.

In terms of context, the book of Revelation was written during a time of intense persecution of the early Christian church. The book was meant to encourage and strengthen believers who were facing hardships and trials. The vision of a new heaven and new earth, with God dwelling among his people, was meant to bring hope and assurance to those who were enduring suffering. This verse, in particular, would have been a source of great comfort to the early Christians, as it reminded them of the ultimate victory and triumph of God's kingdom over the powers of evil and darkness.

In conclusion, Revelation 21:3 from the King James Version of the Bible is a powerful and profound declaration of God's presence and relationship with his people. It speaks to the themes of God's dwelling with humanity, the unity and belonging of God's people, and the personal nature of God's relationship with his children. This verse serves as a source of hope and encouragement for believers, as it points to the ultimate fulfillment of God's promises and the establishment of his kingdom on earth. It reminds us of God's unwavering love and faithfulness towards his people, and inspires us to live in the reality of his presence and grace.