"I say to God, my rock: Those who were in Egypt only did one commandment and left. As for me, all the commandments that I was commanded, I do, even those that I have forgotten. I observe the new moon and celebrate the holiday of Shavuot on the first of the seventh month, on the tenth of the month, and on the fifteenth of the month. What is the (sacrifice) for the seventh month?
Is there no seventh month other than this? But you say to me every year that whoever comes, I will redeem. Come and redeem me. I say to God, my rock, why have you forgotten me?
Yet, you have written about me, for you are my God, my fortress. Until you redeemed our ancestors from Egypt, they did not give you strength (Exodus 15:2). I will not do so until you redeem me. For you are my God, my strength, and my fortress.
And it also says (Jeremiah 16:19): "The Lord is my strength and my fortress." Why do you walk in darkness? Redeem me as you redeemed our ancestors from the oppression they were under. And it also says (Exodus 3:9): "I have surely seen the oppression."
I have nothing but oppression. Why do you walk in darkness? Did you not send them redemption, as it says (Psalm 105:26): "Moses, His servant, He sent"? And also, He sent two against them, as it says (Isaiah 43:10): "Behold, My servant, whom I uphold."
Therefore, it says, "He sent your light and your truth." God said to them (Malachi 3:23): "Behold, I will send you Elijah the prophet." Here he is! And the second one (Isaiah 42:1): "Behold, My servant whom I support."
Therefore, it is said, "He will bring me to the holy mountain, and I will come to the altar of God." What do I have to offer except thanksgiving? And so Asaph says (Psalm 79:13): "But we are Your people, and the sheep of Your pasture."