The Feast of Tabernacles marked the beginning of the rainy season in Israel. On the last day of the feast, water was taken from the pool of Siloam in a procession and poured on the temple altar to ask for life-giving rain.
In the midst of this ceremony Jesus cried out, “If anyone thirsts, let him come to me and drink. Whoever believes in me, as the Scripture has said, ‘Out of his heart will flow rivers of living water.’” (John 7:37-38).
In Jeremiah 17:13, God is described as a fountain of living water. Also in Jeremiah 2:13.
Through Jesus, divine life comes into us and flows out of us.
This is done by the Holy Spirit. John writes in John 7:39, “Now this he said about the Spirit, whom those who believed in him were to receive”.
In Revelation 22:17 Jesus says: “Let the one who is thirsty come; let the one who desires take the water of life without price.”