Thou shalt not offer the blood of my sacrifice with leaven; neither shall the sacrifice of the feast of the passover be left unto the morning. The blood of my sacrifice - That is, the paschal lamb. See Clarke on Exodus 23:18 (note).
Related Commentaries of Exodus 34:25
Exodus 34:25
25 Thou shalt not offer the blood of my sacrifice with leaven; neither shall the sacrifice of the feast of the passover be left unto the morning.