וְהָיָ֖ה כִּי־תֵלֵ֣ךְ עִמָּ֑נוּ וְהָיָ֣ה ׀ הַטּ֣וֹב הַה֗וּא אֲשֶׁ֨ר יֵיטִ֧יב יְהוָ֛ה עִמָּ֖נוּ וְהֵטַ֥בְנוּ לָֽךְ׃
“At mangyayari, kung sasama ka sa amin, ang kabutihang iyon na gagawin ng Walang-Hanggan sa amin ay siya rin naming gagawin sa iyo.”
Tosefta Bikkurim
Rabbi Yehuda says, [among] all the converts, everyone brings [first fruits] but they do not recite the declaration. [However,] the Kenites, the descendants of the father-in-law of Moses (Judges 1:16), bring [first fruits] and recite the declaration, as it is said (Num. 10:32), "[Moses said to Hovav, son of R'uel the Midyanite, Moses's father-in-law] ... It will be that if you go with us ... [from the goodness that God does to us, we will do good unto you]."