Did Israel steal from the Egyptians when they left?
Verse 37 says God took Israel out "with silver and gold." The Torah tells how. Before leaving, Israel asked the Egyptians for silver, gold and clothing, and "they emptied Egypt" (Shemot 12:35-36). A fair question is whether that was borrowing or taking.
The Gemara (Berakhot 9a) answers that it was a promise being kept. God had told Avraham that his children would be slaves, "and afterward they will leave with great wealth" (Bereishit 15:13-14). So God asked Israel to take the silver and gold, so that Avraham would not say only half the promise came true. The Emet Ve'emunah prayer tells that passage of the Gemara in full, with the people's answer.
The Gemara also records a disagreement about how it happened. Rabbi Ami says the lending happened against someone's will. Some say the Egyptians', others say Israel's, because they did not want to carry the load.
A second story is in Sanhedrin 91a. The Egyptians come to Alexander the Great, the Greek conqueror, and demand the silver and gold back. A Jew named Geviha ben Pesisa, who calls himself an ordinary member of the people, argues for Israel. The Torah says Israel lived in Egypt 430 years, so pay us wages for 600,000 workers for all those years. The Egyptians ask for three days, find no answer, and run.
The psalm itself argues none of this. It says they left with silver and gold, and Egypt was glad to see them go. The Gemara gives two answers to the question of fairness: a promise kept, and wages owed.
Shemot 12:35-36,Bereishit 15:13-14,Berakhot 9a-9b,Sanhedrin 91aWas the Land a reward, or a deal we could lose?
The psalm ends with a purpose. God gave them the lands of nations "so that they would keep His laws and guard His teachings." Then comes one word: Halleluyah. That sounds like a condition. Does it mean the Land is something we earn?
Radak hears it as a condition. He says the Land was given "on condition that they keep His laws and teachings," and that if they did not, they would be sent away from it.
Midrash Tehillim hears something else. Rabbi Chanina asks Rabbi Chiya bar Abba what the verse means and gets a picture. A worker labors for a householder and is paid. Does he owe the householder thanks? Not really: if he did the work faithfully, the pay is his wage. David says to God, in the Midrash: we are lazy workers, and we do not work for You faithfully. So we must thank You for giving us the lands of nations. And what do we do? We sing and say Halleluyah.
Rashi gives the wider frame. When Moshe asked what merit Israel had to be taken out of Egypt, God answered that He had a great purpose in it: they would receive the Torah on this mountain (Shemot 3:12). So the Exodus itself was aimed at the Torah.
On verse 42 Rashi says why the whole story happened: God remembered His promise to Avraham, that they would leave with great wealth and that a fourth generation would return here. So the sources hold three things together. It began as a promise. It is received as a gift. It comes with a job.
The sources we opened do not try to reconcile the condition with the gift. The psalm just ends with Halleluyah.
Radak on Tehillim 105:45,Midrash Tehillim 105:10,Rashi on Shemot 3:12,Rashi on Tehillim 105:42Why is the quail a gift here, when elsewhere it ends in disaster?
Verse 40 says: "They asked, and He brought quail, and satisfied them with bread from heaven." Radak says this is the Wilderness of Sin: quail in the evening, and bread, the manna, in the morning.
Read the Torah's version and the tone changes. In Shemot 16:3 the people say it would have been better to die in Egypt, "when we sat by the pots of meat." God says, "I have heard the complaints" (Shemot 16:12). The Torah's word is complaints. The psalm's word is asked.
Later, in Bamidbar 11, the crowd craves meat again. Quail come. Then the Torah says the meat was still between their teeth when God struck the people with a great plague (Bamidbar 11:33).
Two nearby psalms tell it that way. Tehillim 78:18 says they "tested God in their hearts by asking for food for their craving." Tehillim 106:15, in the next psalm, says: "He gave them what they asked, and sent wasting into their souls."
Radak knows what Tehillim 105 leaves out. On verse 42 he says God did all this for the sake of Avraham, because Israel itself was not worthy. They quarreled and tested God.
So this psalm tells one side: what God gave. Other places tell what the people did with it. The sources we opened do not say why the psalm leaves out the rest, but Radak makes sure we know it exists.
Shemot 16:3 and 16:12,Bamidbar 11:33,Tehillim 78:18 and 106:14-15,Radak on Tehillim 105:40 and 105:42