God is spirit, and those who worship him must worship in spirit and truth."
      c. Because God is a spirit. Christ came to declare God to us (John 1:18; John 1:18), and this he has declared concerning him; he declared it to this poor Samaritan woman, for the meanest are concerned to know God; and with this design, to rectify her mistakes concerning religious worship, to which nothing would contribute more than the right knowledge of God. Note, (a.) God is a spirit, for he is an infinite and eternal mind, an intelligent being, incorporeal, immaterial, invisible, and incorruptible. It is easier to say what God is not than what he is; a spirit has not flesh and bones, but who knows the way of a spirit? If God were not a spirit, he could not be perfect, nor infinite, nor eternal, nor independent, nor the Father of spirits. (b.) The spirituality of the divine nature is a very good reason for the spirituality of divine worship. If we do not worship God, who is a spirit, in the spirit, we neither give him the glory due to his name, and so do not perform the act of worship, nor can we hope to obtain his favour and acceptance, and so we miss of the end of worship, Matthew 15:8; Matthew 15:9.