The assertion that Jesus, the promised Messiah, was a vessel filled with God can be understood as a metaphor emphasizing his unique role in the incarnation and realization of God's plan.

Jesus as the Divine Vessel: Fulfillment of God's Promise

The assertion that Jesus, the promised Messiah, was a vessel filled with God can be understood as a metaphor emphasizing his unique role in the incarnation and realization of God's plan. On one hand, even as an ordinary man from Nazareth, Jesus became the bearer of divine presence and power through which God acted in human history. In other words, his human nature served as a container for the Divine purpose, underlining the unity of the human and the Divine in him.

This idea echoes the way John presented Jesus:
"John’s words—'Behold the Lamb of God'—were not merely a common statement... John’s words testified that the Savior had already come into the world and that He is Jesus of Nazareth. It does not matter what people think, as if nothing good can come from Nazareth... Jesus is the true Messiah, the One They Had Been Expecting." (source: link txt)

In this context, even if the term "vessel" was not directly used in the quoted sources, the overall picture of traditional views on Christ also indicates that his life and ministry were the means by which God fulfilled his promise of salvation. Essentially, Jesus not only lived as an ordinary man, but within him God’s intention was realized—this is precisely why his life, death, and resurrection became the decisive moments in human history, as emphasized in Paul’s message:
"And further I will try step by step to approach what Paul himself considered the heart of his gospel. Essentially, his entire preaching came down to the following: since Jesus of Nazareth, who was crucified on the cross, was resurrected by God from the dead, it means that he is the promised Messiah to Israel, appointed to reign over the world. Or, more succinctly, Jesus, the crucified and resurrected Messiah, is the Lord of the universe." (source: link txt)

Thus, interpreting the assertion, one can say that the idea of a vessel filled with God emphasizes the special status of Jesus: he is the chosen one imbued with Divine power, revealed to the people as the true Messiah, despite his ordinary origins. This aligns with traditional religious views, since both Jewish and Christian traditions do not deny the human nature of Christ while simultaneously affirming that in him there occurred a union with the Divine. Jesus is indeed not just an ordinary man but the embodiment of God's will and power, as confirmed by the statement similar to the one given by John.