How do we know that Jesus is the 'tree of life'?

The designation of Jesus as the 'tree of life' is supported by passages in both the Old and New Testaments. In Revelation 22:2, it is declared that 'the leaves of the tree were for the healing of the nations', a clear indication of Christ's redemptive work. Furthermore, His abundance in grace is described as never-ending, where believers can continuously draw from His life-giving presence. Such symbolism points to the fulfillment of life's needs and the provision of healing found exclusively in Him, affirming His essential role in the salvation of humanity.