Jesus is speaking to the Sadducees, a group that did not believe in the resurrection. He uses the story of Moses and the burning bush to make a profound point about life after death. When God identifies Himself as the God of Abraham, Isaac, and Jacob, He uses the present tense, indicating that these patriarchs are still alive in some form. This suggests that God's relationship with His people transcends death, affirming the reality of resurrection and eternal life. Jesus' argument is that if God is the God of the living, then those who have passed are still alive to Him, reinforcing the belief in a life beyond this one.
This teaching reassures believers of the continuity of life and the hope of resurrection. It highlights God's faithfulness and His eternal covenant with His people. The verse encourages Christians to live with the assurance that death is not the end, but a transition to a new form of existence with God. It also challenges them to view their relationship with God as one that is everlasting, rooted in His eternal nature and promises.