Is there not a gospel sense here under a Jewish covering? Doth it not mean to say, that no leaven of ours must be mingled with the sacrifice of Jesus's blood and righteousness. Observe the expression: The Lord calls it my sacrifice. See 1 Corinthians 5:7; Galatians 5:2-4.
Related Commentaries of Exodus 23:18
Exodus 23:18
18 Thou shalt not offer the blood of my sacrificef with leavened bread; neither shall the fat of my sacrifice remain until the morning.