RobH_en_tn/deu/14/29.md

because he has no portion nor inheritance with you

God not giving any land to the Levites is spoken of as if he were not giving them an inheritance. (See: rc://en/ta/man/translate/figs-metaphor)

fatherless

These are children whose parents have both died and do not have relatives to care for them.

widow

This is a woman whose husband has died and has no children to care for her in her old age.

in all the work of your hand that you do

Here "hand" represents the whole person. This refers to the work that someone does. Alternate translation: "in all the work you do" (See: rc://en/ta/man/translate/figs-synecdoche)