Why is the concept of Christ as the tree in the waters of Mara significant?

In Exodus 15:25, when Moses casts a tree into the bitter waters of Mara, this act serves as a powerful symbol of Christ's sacrificial death. The tree represents life, but to bring sweetness to the waters, it must be cut down. This foreshadows Christ's death on the cross, where He bore the sins of His people, allowing the bitterness of sin to be replaced with the sweetness of salvation. By this act, the waters became drinkable, symbolizing how Christ provides life and sustains us in our spiritual journey, turning our bitterness into joy.