Why does the Torah add the word "u'Matah Yado Imach"?
Oznayim la'Torah #1: To obligate one to help his fellow-Jew even if he himself his own property is also unstable, as Chazal said in Gitin, 7a 'If a person's Parnasan is strained, he should give away part of it as Tzedakah and, on Amud Beis, 'Even a poor man is obligated to give Tzedakah'.
Oznayim la'Torah #2: To be sure you cannot help ll the Aniyim, but one who is 'with you', in your town, whom you recognize
See Oznayim la'Torah, DH 'u'Matah Yado Imach' #2.
What are the implications of the words "ve'Hechezakta bo"?
Rashi: It means that one should support him, to prevent him from falling any further. 1
Moshav Zekenim: The Hif'il (causative form) of "Vechezachta bo" 2 teaches us that one should support even if he has already helped him four or five times.
Why does the Torah add "Ki Achuzas Olam hi Lahem"?
Erchin, 28a: To forbid the Levi'im to declare their fields or their houses 'Cherem'. 1
See Bechukosai, 27:28. See also Torah Temimah, note 180.
Why does the Torah insert "u'Matah Yado Imach"?
Moshav Zekenim: We find "ve'Nikleh Achicha le'Einecha" in Ki Seitzei, Devarim 25:3, from which the Chachamim learned that someone who sinned is only called "Achicha" after he has received Malkos. Therefore, one who transgressed be'Meizid may not testify until after he received Malkos.
See also Torah Temimah, note 185.
What is the meaning of "Ger ve'Soshav"?
Rashi (based on The Sifra) and Targum Onkelos: "Ger" refers to a Ger Tzedek; "Toshav", to a Ger Toshav (a Nochri who has undertaken not to worship idols - and to observe the other six Mitzvos B'nei No'ach, and whom one is obligated to sustain - Rashi in Avodah Zarah, 20a), even though he still eats Neveilos.
Their text of Onkelos was 'Yidor ve'Yitosav.' According to this, there is no Mitzvah to support a Ger Toshav! This explanation resolves four difficulties of Rashi's (the accepted) explanation - Refer to 25:35:3:1 1. Why is "va'Chai" singular? 3
According to Rashi, the Esnachta should be on "Bo", for until "Bo" it is discussing "Achicha". 3. Why is a Ger Toshav mentioned here? One may take Ribis from a Ger Toshav! 4. Tosfos (Bava Metzi'a 111b DH mi'Gercha) asked that a convert is already included in "Achicha"! (Also see question 25:35:151
QUESTIONS ON RASHI
Rashi writes that one must support even a Ger Toshav. If so, all the more so a Jew and convert. Why did the Torah need to write "Achicha" and "Ger"?