#heard it

"heard what they were saying"

#from their hand

The phrase "their hand" refers to the brothers' plan to kill him. AT: "from them" or "from their plans" (See: [[:en:ta:vol2:translate:figs_metonymy]])

#Let us not take his life

The word "us" refers to all of the brother. Also, the phrase "take his life" is a euphemism for killing someone. AT: "Let us not kill Joseph" (See: [[:en:ta:vol2:translate:figs_inclusive]] and [[:en:ta:vol2:translate:figs_euphemism]])

#Shed no blood

The negation can be placed on the verb. Also, "shedding blood" is a euphemism for killing someone. AT: "Do not spill any blood" or "Do not kill him" (See: [[:en:ta:vol2:translate:figs_litotes]] and [[:en:ta:vol2:translate:figs_euphemism]])

#lay no hand upon him

This means not to harm or injure him. AT: "do not harm him" (See: [[:en:ta:vol1:translate:figs_idiom]])

#that he might rescue him

This can be translated as a new sentence: "Rueben said this so that he might rescue Joseph"

#out of their hand

The phrase "their hand" refers to the brothers' plan to kill him. AT: "from them" or "from their plans" (See: [[:en:ta:vol2:translate:figs_metonymy]])

#to bring him back

"and return him"