How will we reconcile "be'Yomo Titen Secharo" with the Pasuk in Kedoshim Vayikra, 19:13 "ve'Lo Salin Pe'ulas Sachir ad Boker"?
Bava Metzi'a, 110b: The Pasuk there is discussing a day laborer, whose remuneration is due by the end of the following night; whereas the current Pasuk is discussing a night laborer, who must be paid no later than the end of the following day. 1
See Torah Temimah, note 138 and Oznayim la'Torah, DH 've'Lo Savo alaav ha'Shemesh'.
What are the connotations of "ve'Eilav hu Nosei es Nafsho"?
Rashi: It means that the laborer (sometimes) endangers himself by climbing up a ramp or suspending himself from a tree 1 - for his wages 2 (Consequently, if the employer holds back his wages, it is as if he 'took his Soul' - Bava Metzi'a, 112a).
Rashbam: It means that the laborer has a strong desire for 3 (sets his mind on) his wages.
Sifri: It precludes from the La'av where the employer comes to an agreement with the laborer beforehand to pay him only later.
See Torah Temimah, note 142.
Rashbam: As in Hoshe'a, 4:8. See also Oznayim la'Torah.
Sifri: Nevertheless, since the Torah wrote in Kedoshim, Vayilra, 19:3 "Lo Salin ... ", the La'av applies even if the worker did not work under dangerous conditions.. See Torah Temimah, note 143.
Why does the Torah need to insert the (otherwise superfluous) phrase "ve'Lo Yikra alecha el Hashem"?
Rashi (in Re'eh, 15:9): To teach us that even if you do not pay him in time, he is not obligated to complain to Hashem. 1
Since the Torah writes "Vehayah b'cha Chet", why did it also need to write "ve'Lo Yikra alecha el Hashem"?