דברים יד:כט פירוש: רש״י, Siftei Chakhamim וRav Hirsch

ובא הלוי AND THE LEVITE SHALL COME and take the “First Tithe” which you have failed to give him,

And take the first tithe. This verse is abridged. For without adding, “...and take the first tithe,” it seems that the Levite, proselyte, orphan, and widow are treated equally; that you are to give them [enough] food to eat their fill.

V. 29. ובא הלוי entweder als voraussetzlich mittellos auch zum מעשר עני berechtigt, oder es wird hier zugleich das ja jedes Jahr für den לוי auszuscheidende מעשר ראשון mit eingeschlossen.