What did the water pots being filled to the brim in John 2 show about the joy Jesus brings to Israel?
The water pots filled to the brim in John 2 signified that the joy Jesus will bring to the nation of Israel is full. The first sign at Cana, turning water into wine, pictured that coming fullness, not a partial or temporary joy. This miracle manifested His glory, and His disciples believed in Him.
Les explains that John chapter 2 records the first sign or miracle, when Jesus turned the water into wine and filled the water pots to the brim. That fullness was to indicate that when He brings joy to the nation of Israel, it is going to be full. Then John 2:11 says, "This beginning of signs did Jesus in Cana of Galilee, and manifested forth His glory, and His disciples believed in Him." Les notes that even the disciples needed the miracles to cement their faith, proving He was who He said He was. The next sign, the nobleman's son, shows Israel was sick, not dead, but very sick.
This beginning of miracles did Jesus in Cana of Galilee, and manifested forth his glory; and his disciples believed on him.