Which verse describes God as Spirit?

The selection of John 4 as the correct answer is based on the explicit statement made by Jesus that characterizes God as Spirit. In this passage, particularly in verse 24, it is stated, "God is spirit, and those who worship him must worship in spirit and truth." This declaration highlights the nature of God that transcends physical form, emphasizing the importance of worship that is driven by the inner spiritual condition of the believer rather than mere external rituals.

This understanding of God as Spirit is foundational in Christian theology, influencing how believers engage with God through worship and prayer. While other choices present different themes—such as spiritual bodies in 2 Corinthians 5, teachings on prayer in Matthew 6, and the creation narrative in Genesis 1—they do not specifically identify or describe God in terms of His essence as Spirit. Thus, John 4 stands out as the key verse that directly addresses the nature of God in this context.