The idea of salvation in the Jewish mind — as written in Isa. 12:2 for example — is tied to the feast of tabernacles. The reference in verse 3 to joyfully drawing water from the springs of salvation reminds the people of the ceremony practiced each day of the feast in which water is drawn from the Pool of Siloam, and it foreshadows the day when Jesus would stand, on the final day of the feast, and proclaim, “If anyone is thirsty, he should come to Me and drink” (John 7:37).
“As the Jew was reminded by the feast of tabernacles of his wanderings in tents in the wilderness, so the Jew-Gentile Church to come shall call to mind, with thanksgiving, the various past ways whereby God has at last brought them to the heavenly “city of habitation” (Ps. 107. Robert Jamieson, A.R. Fausset, David Brown, A Commentary, Critical and Explanatory, on the Old and New Testaments, S. Is 12:2).
Everyone can see Jesus in the Feast of Tabernacles by noting the Messianic symbols God gave us — and Jesus fulfilled — in the feast, most notably:
1. The tabernacle.
2. The water.
3. The light.
4. The harvest.