John Calvin Commentary Hebrews 11:28

"By faith he kept the passover, and the sprinkling of the blood, that the destroyer of the firstborn should not touch them." — Hebrews 11:28 (ASV)

Through faith he kept the Passover, etc. This ought to have done much to commend faith to the Jews, for they held this first sacrifice of the Passover in the highest esteem. But, he says, it was kept by faith, not because the Paschal lamb was a type of Christ, but because its benefit was not yet evident when he sprinkled the doorposts with blood; and so, when the effect was still hidden, it necessarily had to be anticipated by faith. Indeed, it might have seemed strange that Moses should set a few drops of blood, as a remedy, in opposition to God’s vengeance; but being satisfied with God’s word alone, that the people would be exempt from the scourge that was coming on the Egyptians, he did not hesitate. Therefore, the Apostle justly commends his faith in this regard.

Those who explain that the Passover was celebrated by Moses through faith because he had regard for Christ, indeed say what is true; but the Apostle here simply records his faith, because he relied on God’s word alone when the effect was not yet evident: therefore, out of place here are philosophical refinements. And the reason he mentions Moses alone as celebrating the Passover seems to be this: God instituted the Passover through him.