John Gill Commentary Numbers 18:13

"The first-ripe fruits of all that is in their land, which they bring unto Jehovah, shall be thine; every one that is clean in thy house shall eat thereof." — Numbers 18:13 (ASV)

[And] whatsoever is first ripe in the land
Of any other sort of fruit, figs, pomegranates, apples, plums, pears besides olives and vines;

which they shall bring unto the Lord, shall be thine ;
which they shall bring in a basket to the tabernacle, where it was, or to the temple, when built: this the priests were to have, see (Deuteronomy 26:2–4) ;

everyone that is clean in thine house shall eat of it ;
(See Gill on Numbers 18:11).