Rashi on Tanakh2 Samuel 6

Dovid again gathered. To gather.

All the chosen men of Yisroel, thirty thousand. Because they gathered for him when they crowned him in Chevron and [therefore] this was a second gathering [for Dovid] [Scripture] herefore says, "[Dovid] again gathered."

From Baalei Yehuda. This is [the city of] Kiryas Yearim as it is said in Yehoshua, "and the boundary circled" and went up "to Baaloh, which is Kiryas Yearim" (Yehoshua 15:9). This also [can be found] in Divrei Hayomim, "Dovid and all Yisroel went up to Baaloh, which is Kiryas Yearim" (Divrei Hayomim I, 13:6). [The word] Baal means a plain.

Dovid arose and went from Baalei Yehuda. That gathered there to bring up the Ark from there…

Whose name is called, the name. The Ark is called a name, and what is the name? The name of Adonoy of Hosts was upon it.

On a new wagon. [Dovid] made a mistake about something that even children at their Rebbe's school know "Because the sacred work was [incumbent] upon them, which they had to carry on their shoulders" (Bamidbar 7:9). And because [Dovid] said, "Your statutes were songs for me in the house of my dwelling,"¹Hashem said to Dovid, “The words of the Torah upon which it is written, ‘Blink your eyes [and be distracted] from it and it is gone’ (Mishlei 23:5), you are calling songs?” (Sotah 35a). A song is of only temporary interest and then forgotten (Maharsho, ibid). (Tehilim 119:54) he was punished to come to this,²Making the mistake of transporting the Ark by wagon. and [to have] Uzoh die through his hand. Therefore³After learning from this mistake. when they brought [the Ark] from the house of Oveid they brought it by shoulder as it says (Divrei Hayomim I, 15:12), "And he said to them, 'You, the heads of households for the Levites, you and your brothers sanctify yourselves and bring up the Ark… because, the first time you did it not.⁴Transporting the Ark on your shoulders. Hashem, Elokeinu made a breach upon us because we did not consult with Him as was proper'."⁵Consequently leading to our tragic mistake.

With the Ark of Elokim. This is a shortened verse, [it means to say] and they were coming with the Ark of Elokim.

With all [instruments made of] cypress wood. Musical instruments manufactured from [cypress wood].

Because the ox had [made] it slip. Because the ox had [made] it slip and had shaken it And so to is Yonasan's translation, "because the ox had [made] it slip," like [Onkelus] translates [the verse], "and his hand slips on the axe" [as follows:] and his hand slips on the axe.⁶Substituting the hebrew word וְנִדְּחָה with the Amaraic translation, וְתִתְמְרִיג denoting slipping just like he uses the same Amaraic word in our verse, i.e., מְרָגוּהִי.

Because of his mistake. Because of his mistake, he should have expounded a fortiori [as follows:] the Ark carried its own porters in the Yardein,⁷When Bnei Yisroel crossed the Yardein into the land of Yisroel as stated in Yehoshua 4:11 and explained in Sotah, ibid. isn't it all the more so [that it is able to carry] itself.

Oveid Edom. He was a Levite as it is wriiten in Divrei Hayomim (I, 15:24) and he was one of the gatekeepers.⁸Of the Bais HaMikdosh.

And Hashem blessed. His wife and her eight daughters-in-law each gave birth to six children in one stomach⁹Pregnancy. as it is said, (Divrei Hayomim I, 26:5–8) "Poualti, the eigth¹⁰Child of Oveid Edom.… sixty-two [belonging] to Oveid Edom.¹¹See Berachos 63b.

Danced. Danced.

Linen robe. A linen robe, Foursaint in O.F. Yonasan translated, robe as Yonasan also translated "the robes of Tomor, the sister of Avsholom," robes (Further, 13:18)

A portion of meat. One sixth of a cow.

A jug [of wine]. A jug of wine.

One of the riff-raff. [Targum Yonasan translates:] One of the riff-raff.

[Had] I made light even more. Before Him [even] more then this [that] I made light of myself now.

I would be more honoured among them. They do not ridicule me but I am important in their eyes becasue of this.

Had no child From that day on.¹²Prior to that day, she did have a child, Yisroam mentioned earlier (Shmuel II, 3:5), see Rashi there.