"To Him who alone does great wonders"
We learn first of a miracle that God had performed in the past by saving some Jews, including Rabbi Pinchas, from robbers. Rabbi Pinchas marvels that such a wonder was done for him, when he did not even know about it. He says we have no way of knowing how often God performs miracles for people because no one knows about them except God Himself. Next the Arabs, who told Rabbi Pinchas about the miracle, tell him about another, how they have just now seen a flock of birds circling around to make shade for five people sitting together. The rabbis know that Rabbi Shimon is among this group of five, and they wonder how to find him. They leave the she-mule to find the path on its own and it takes them straight to Rabbi Shimon and his disciples. Rabbi Shimon opens by saying that "A psalm. O sing to Hashem a new song, for He has done marvellous things" was chanted by the cows, who mooed the song to all who came out to welcome the ark.