What is the significance of the phrase "not my will but yours be done" in the context of the Gospel of Matthew?

In the Gospel of Matthew, the phrase "not my will but yours be done" is significant because it shows Jesus' submission to God's plan and will. It demonstrates his obedience and acceptance of his role in fulfilling God's purpose, even in the face of suffering and sacrifice. This phrase highlights Jesus' humility and faith in God's ultimate plan for salvation.