📖 John 7:37-39 • "If any man thirst, let him come unto me and drink." Jesus didn't raise his hand and wait to be recognized. He stood up and cried — an interruptive, loud, exclamatory declaration in the middle of the most sacred day on the Jewish calendar. Why was this the greatest day of the feast? Why did the priest carry water in a golden pitcher from the Pool of Siloam through a gate mentioned in Nehemiah — and what does that have to do with Hezekiah's 1,800-foot tunnel carved through solid rock? Why was the crowd singing Psalm 118 — and did they know they were singing it directly to the one standing in their midst? This sermon traces water from Genesis 1 — where the Spirit of God moved over the face of the waters before a single living thing existed — all the way to Revelation 22 and the pure river of water of life flowing from the throne of God. Every drop in between: the rock Moses struck in the wilderness, Hezekiah's conduit, the pool, the golden pitcher, the gate of the Lord, the water and blood from the spear wound at Calvary — it was all pointing to one Person. Jesus wasn't offering a ceremony. He wasn't offering a better church experience. He was offering a river from within — one that, once received, never runs dry. This expository message walks through John 7:37-39 and its rich Old Testament background, showing: • Why the last day of the Feast of Tabernacles was the most significant day on the entire Jewish religious calendar • How Hezekiah's 1,800-foot tunnel through solid rock carried the water used in this very ceremony (2 Kings 20, 2 Chronicles 32) • What the Water Gate in Nehemiah 8 reveals about the Word of God and conviction