According to the legend of the pool of Bethesda, where the paralytic was healed; once a day an angel would touch the waters of the pool, stirring them up. The first person to enter the waters at that time would be healed.
In Luke [22:43], an angel comforts Jesus during the Agony in the Garden. In Matthew [28:5] an angel speaks at the empty tomb, following the Resurrection of Jesus and the rolling back of the stone by angels.
Michael: “who is like God?”
Gabriel: the strength of God
Raphael: God Heals