1.

Rashi (in Chukas, 20:12) and Targum Yonasan: "Lachein is an expression of Shevu'ah. ¹

2.

Ba'al ha'Turim: Because it has the same Gematriyah as 'Midah be'Midah' (measure for measure). ²

1.

Ramban: Hashem was instructing Moshe to tell Yisrael that Pinchas had become a Kohen permanently.

2.

Targum Yonasan: Hashem was instructing Moshe to tell Yisrael that He would turn Pinchas into an angel ¹ who would live forever and inform them of the Ge'ulah at the end of days. ²

3.

Da'as Zekenim: It implies 'Tell them so they should not hate him for killing a Nasi. Because he dispelled My anger, and I did not annihilate Yisrael!'

4.

Oznayim la'Torah: It was a command to inaugurate Pinchas into the Kehunah - to inform him that Hashem was conferring upon him the status of Kehunah. ³

1.

Rashi It implies ?My covenant, which is Shalom?. ¹

2.

Seforno: It implies 'free from the Mal'ach ha'Maves' ² ? since death is the reult of discord (among the various parts of a person)

3.

Da'as Zekenim and Hadar Zekenim (in Pasuk 11): He need not worry about the relatives of Zimri, nor of Kozbi, who was a princess. ³

4.

Rosh: It implies that he will never die. ⁴

5.

Riva: Pinchas was afraid that, since a Kohen who kills is not permitted to perform Birkas Kohanim. he had lost his Kehunah; so Hashem reassured him that he had not.

6.

Kidushin, 66b: Refer to 25:12:4:1.

7.

Targum Yonasan: He became a living angel (Eliyahu) who would never die and who was destined to inform Yisrael that the redemption from Galus had arrived.

8.Sanhedrin, 82b #1: Assuming that Pinchas was Eliyahu, ⁵ it refers to Eliyahu ha'Navi, who will come to make peace in the world before the coming of Mashi'ach. ⁶

9.

Sanhedrin, 82b #2: It implies that Pinchas merited an eternal B'ris Shalom because his deed atoned forever. ⁷

10.

Oznayim la'Torah: He blessing him with Shalom, in order to prevent his opponents - the tribe of Shimon the people who had begun to mock him, from avenging the death of Zimri.

1.

Ba'al ha'Turim #1: To teach us that a Kohen may only serve in the Beis-ha'Mikdash when he is whole (without blemish), ¹ but not when he is a Ba'al-Mum. ²

2.

Ba'al ha'Turim #2: Because Hashem gave Pinchas a complete ³ gift consisting of ten Matnos Kehunah in the Beis-Hamikdash and ten in the Medinah (in all other areas of Eretz Yisrael).

3.

Ba'al ha'Turim #3: Because Pinchas was Eliyahu, ⁴ from whose name the 'Vav' is also missing. ⁵

4.

Moshav Zekenim: This teaches that he is Shalem ⁶ in his Kehunah, and need not worry about punishment for killing a Nasi.

5.

Oznayim la'Torah: Shalom - the Name of Hashem - is broken because Hashem is pained when someone dies, even if that someone is a Rasha. ⁷

1.

Torah Temimah: Refer to 25:12:3:6*.

2.

Oznayim la'Torah #1 (in Pasuk 11): Because whereas Moshe and Aharon were merely performing their duty in their capacity as leaders of Yisrael, Pinchas was, up until now, an ordinary citizen, who would naturally have hesitated to perform such a brazen act, and had to fight his Yeitzer ha'Ra to stand up and act.

3.

Oznayim la'Torah #2 (in Pasuk 11): Because, whereas both Moshe and Aharon stopped the plague that was ravaging the Eirev Rav exclusively, the current plague had spread to Yisrael as well. ¹ Moreover, he also stopped the people from sinning, ² which Moshe and Aharon did not do.