C. F. Keil and Franz Delitzsch on Exodus 22:29-30

Exo 22:29-30

“Thy fulness and thy flowing thou shalt not delay (to Me).” מלאה fulness, signifies the produce of corn (Deu 22:9); and דּמע (lit., tear, flowing, liquor stillans), which only occurs here, is a poetical epithet for the produce of the press, both wine and oil (cf. δάκρυον τῶν δένδρων, lxx; arborum lacrimae, Plin. 11:6). The meaning is correctly given by the lxx: ἀπαρχὰς ἅλωνος καὶ ληνοῦ σοῦ. That the command not to delay and not to withhold the fulness, etc., relates to the offering of the first-fruits of the field and vineyard, as is more fully defined in Exo 23:19 and Deu 26:2-11, is evident from what follows, in which the law given at the Exodus from Egypt, with reference to the sanctification of the first-born of man and beast (Exo 13:2, Exo 13:12), is repeated and incorporated in the rights of Israel, inasmuch as the adoption of the first-born on the part of Jehovah was a perpetual guarantee to the whole nation of the right of covenant fellowship. (On the rule laid down in Exo 22:30, see Lev 22:27.)