The title says it is for dedicating the Temple. So where is the Temple?
Read past the first line and the House is gone. There is no building, no altar, no crowd. One person was close to death, cried out, and was healed. The commentators noticed. Radak (Rabbi David Kimchi, Provence, around 1200) says it outright: "there is no mention of the House in this psalm."
Rashi (the classic commentator, France, died 1105) explains the title simply. David wrote this for the Levites to sing at the dedication of the Temple in the days of his son Shlomo. And the healing? "You healed me," Rashi says, means forgiveness of sin.
Radak joins the two. David's enemies thought that his sin would cost him and his children the throne. Then Shlomo, a son of that same marriage, became king over all Israel, the one who would build the Temple. At that point, Radak writes, everyone knew David had been forgiven completely. Radak calls that forgiveness "the healing of his soul." Metzudat David (a line-by-line commentary on the Prophets and Writings, from the 1700s) names the sin: Batsheva. Shlomo was her son.
Ibn Ezra (a Spanish commentator on Tanach who died in the 1160s) lists other opinions. Some say David ordered it sung at the First Temple. Some say it is about the Second Temple or the Third, with exile pictured as a sickness. His own view is that the house is David's own palace, the "house of cedar." The psalm never says "House of Hashem," he points out, and around that time David was sick and recovered.
The Malbim (Rabbi Meir Leibush Weiser, a commentator of the 1800s) reads it another way again. The house is the body, the home the soul lives in. When David was sick, the pillars of that house shook. When he was healed, the house was rebuilt.
So the sources do not agree on which house this is. Most of them do read the song itself the same way: one person's thanks for being pulled back up.
Rashi on Tehillim 30:1 and 30:3,Radak on Tehillim 30:1,Metzudat David on Tehillim 30:2,Ibn Ezra on Tehillim 30:1,Malbim on Tehillim 30:1"Crying at night, joy in the morning." Is that a promise?
This is the line people know: "In the evening, weeping stays the night, and by morning there is a shout of joy." Anyone who has had a hard month knows one night of sleep does not fix everything. So what is the verse saying?
Start with the verb. Yalin means to stay somewhere overnight, the way a traveler does. Ibn Ezra (a Spanish commentator on Tanach who died in the 1160s) says the verse is speaking in a picture: it is the weeping that lodges for the night. He gives a second way to read it: a person goes to bed in tears and gets up in joy.
Radak (Rabbi David Kimchi, Provence, around 1200) says evening and morning are pictures too. The verse "compared the time of weeping and grief to evening, which is darkness, and the time of rescue and good to morning, which is light and joy." So it is about dark times and better times, not the clock.
How do the two compare? The first half of the verse: "His anger lasts a moment; in His favor there is life." Rashi (the classic commentator, France, died 1105) reads that as a small moment against a long life. Radak points to the Thirteen Attributes, the Torah's list of God's ways: punishment is counted there in three or four generations, kindness in thousands. (Ribono Shel Olam has an essay on what God's "anger" means.)
Then Radak says what the verse meant to David himself. The punishment he received in this world was "like a moment" in his eyes. The favor, the news that he was forgiven, is "long life, which is the life of the world to come." On that reading, the life in the verse is more than this life.
Rashi reads the line before it as David speaking to everyone else: sing about what God did for me, because you can rely on Him to do good for you too, "and even if you are in distress, do not be afraid." The psalm does not say there is no night. Its writer had one.
Tehillim 30:5-6,Ibn Ezra on Tehillim 30:6,Radak on Tehillim 30:6,Rashi on Tehillim 30:5-6"Will dust thank You?" Doesn't Judaism say the soul lives on?
In the middle of the psalm David argues for his life: "What is gained by my blood, by my going down to the pit? Will dust thank You? Will it tell of Your truth?" It sounds as if death is the end.
The plain reading is close to that. Metzudat David (a commentary on the Prophets and Writings from the 1700s) explains: what use is it if my blood is spilled? When a person goes back to being dust, will he thank You then? Better to heal him, and then he will thank You.
The Gemara asks about a similar verse of David's: "The dead do not praise God." Its answer: a person should be busy with Torah and mitzvot before he dies, "because once he dies he is finished with Torah and mitzvot, and the Holy One has no praise from him." On that reading, the verse is about what a dead person can no longer do.
Radak (Rabbi David Kimchi, Provence, around 1200) finds the soul inside David's own words. Dust will not thank God, he writes, but the spirit that returns to God will, as Kohelet (Ecclesiastes) says: "The dust returns to the earth as it was, and the spirit returns to God who gave it." What David feared, on this reading, was that his sin would cost him that return.
Now the last verse: "so that kavod will sing to You and not go silent." Kavod usually means honor or glory. Here, Radak says, it is the soul, and it answers the earlier question. Dust cannot thank. The soul can, and it does not stop: "I know that my kavod will remain after me and will sing to You forever."
Is David bargaining? The Malbim (a commentator of the 1800s) reads it differently. David, he writes, was not asking to live for his own sake, but so that he could thank God and serve Him. Ibn Ezra (Spain, 1100s) says something close: David is glad he will live to serve his Creator and come to know His works, "because for this he was created."
Tehillim 30:10 and 30:13,Metzudat David on Tehillim 30:10,Shabbat 30a, on Tehillim 115:17,Radak on Tehillim 30:10 and 30:13,Malbim on Tehillim 30:9,Ibn Ezra on Tehillim 30:12