Matthew Poole and continuators on Exodus 23:18

18 Thou shalt not offer the bloud of my sacrifice with leavened bread , neither shall the fat of my sacrifice remain untill the morning .

This and the following clause most understand of the Passeover, by comparing this place with its parallel. Exod. 34. 25. where the Passeover is mentioned. But the words being here universal, by the laws of interpretation they ought to be universally understood, if they can bear that sence, which here they may: for both these clauses agree to other sacrifices. For as every sacrifice had a Minchah or a meat-offering of flour attending upon it and offered with it, so it was expresly cautioned, that no leaven should be in that Minchah, Lev. 2. 11. And the fat of every sacrifice was consecrated to God, Lev. 3. 16. 2 Chron. 35. 14, &c. and was presently to be burnt upon the Altar, Lev. 7. 2, 3. And for Exod. 34. 25. what hinders but what is here more generally prescribed, may be there particularly applied to the Passeover? and that seems more reasonable, than to make that an idle repetition of the same thing. And my sacrifice may be here put for my sacrifices, by the common Enallage. Moreover the two principal things which were offered to God in every sacrifice were blood and fat, [illegible: 1+ letters]v. 17. 6, 11, &c.

This if understood of the Passeover may seem superfluous, because nothing of it, neither fat nor lean, was to remain until the morning, Exod. 12. 10. but all of it was to be eaten even the purtenance thereof, ver. 9. and that, for ought I see, without any exception of the fat, as there was in other sacrifices, Lev. 3. 16. And therefore in that parallel place, Exod. 34. 25. where the Passeover is mentioned, there is not a word of the fat, but onely it is said in the general, neither shall the sacrifice of the feast of the Passeover beleft until the morning. And in that 2 Chron. 35. 14. where there is mention of the fat, it is manifestly restrained to the burnt-offerings, which are there distinguished from the Passeover, ver. 11, 12.

Marginal references: Lev. 2. 11. Deut. 16. 3.; Or, feast.