Duh about Easter

My sister's Bible study brought up details about the crucifixion and last supper I had not thought of. All this time I hadn't figured this out. First know calling it Easter is originally pagan. And I know neo pagans still have their celebration but unfortunately it can mean mocking Christ. But the use of the word is not pagan, it's the attempt at producing a substitute holiday for Christians. But beyond that, I never knew it was always paralleling Passover. My sister explained this is bc the new moons and such that the Jews use have been used also by church people to determine when Easter should be, just as they determine when passover should be. So, the time of the original passover must have been at this time. Odd then that this pagan thing, due to the onset of spring is also at the time of the Exodus. But that the last supper also was a passover supper I had not realized. Jesus was honoring passover, and telling them, i.am the lamb that was protecting Israel then, and my body and blood are for your redemption. The reason it was not obvious is bc they never have said in church this was passover, and bc passover I know begins at sundown and the betrayal came next, then the crucifixion which we know was afternoon, so what is the timeline? First, is passover supper only Friday Eve at onset or are there other suppers through the week, or was this the Friday as passover began but good Friday was the following Friday where by sundown passover had ended? Do you see why I never saw it was actually passover though of course I know He is the lamb, and the Passover foreknew the lamb. 

But may Jews emphatically know that the reverence in it's inception was there, for passover and for Jesus/Yeshiva as the hidden symbolic lamb now revealed. Then I thought, well lamb would be the correct food for this. My sister said they don't mention lamb as the food bc Jesus was talking about him metaphorically being the lamb that we should "eat" for our redemption. And why now do we shameless ly eat a non kosher food as our typical easter meal, ham? It hit me. Bc we also acknowledge what God said to Peter, that we now consider all meats to be "clean" as God considered all humans clean in His eyes,  receptive to His grace and redemption.