en_tn_lite_do_not_use/luk/06/35.md

expecting nothing in return

"not expecting the person to return what you have given him" or "not expecting the person to give you anything"

your reward will be great

"you will receive a great reward" or "you will receive good payment" or "you will get good gifts because of it"

you will be sons of the Most High

It is best to translate "sons" with the same word your language would naturally use to refer to a human son or child.

sons of the Most High

Make sure that the word "sons" is plural so it is not confused with Jesus's title "The Son of the Most High."

unthankful and evil people

"people who do not thank him and who are evil"