How do we know that Jesus is the true bread of life?

In John 6:35, Jesus refers to Himself as the bread of life, signifying that He is the spiritual sustenance necessary for eternal life. This assertion helps to connect His mission as the Messiah to the Old Testament imagery of manna, which sustained the Israelites in the wilderness. Just as God provided for His people physically through manna, Jesus fulfills that spiritual need, offering Himself as the ultimate sustenance. The significance lies in the belief that those who partake in Him by faith will never spiritually hunger or thirst, thus securing their eternal salvation, aligning with His statement in John 6:40 that whoever sees the Son and believes in Him will have everlasting life.