Let the Bible speak for itself. The author of Acts 12:4 wrote the Greek word “pascha” (Strongs 3957). Anyone can go over to Biblehub.com and see how many different translators translate this word:
https://biblehub.com/acts/12-4.htm
And if you want to see the Greek text, you can go to a Greek-English Interlinear like this one:
https://www.scripture4all.org/OnlineInterlinear/NTpdf/act12.pdf
And there, plain as day on page one of the PDF is “pasca”, a word that would sound far more like “Passover” than “Ishtar”.
Who are you going, to believe, the author or people coming centuries later telling you that the word doesn’t mean what it plainly means?
As Jesus said, the truth will set you free. And speaking of free, Jesus said that the only sign he was Messiah was that he would be three days and three nights in the grave. How do you get three days and three nights out of the conventional Easter narrative. Well, only by redefining the meaning of words, like we hear so much today.
Don’t be afraid of the truth. Just ask yourself, what if the truth is that Jesus was really in the grave three full days and three full nights, exactly and only as the Gospels authors said? Where does that truth lead you?
It leads me to know that Jesus couldn't have died on Friday afternoon and then resurrected on Sunday Morning...
You get 3 days and 3 nights if you understand that for 2nd temple Israel the day started from sunset.
The word we are looking for is “onah.” It describes an indefinate period of time. In relation to the average day, though, it meant the period of day vs. night. A day began at sunset, or with the night onah. The last half of the day, during daylight, was the day onah. Even though day and night last for different durations throughout the year, they still equal one onah. (9 hours of sun in winter, or 13 hours of sun in summer is the same onah.)
So, Jesus was “dead” during the Friday “day onah” - Saturday “night onah” - Saturday “day onah” - Sunday “night onah” and Sunday “day onah” since it was dawn when He rose. One could look at it as 3 periods of day and night onahs. To the Jews, when Jesus died about 3pm Friday, by sunset Friday he was dead two days. By sunset Saturday, he was dead three days. If he arises Sunday morning, he arises on the third day.
Also remember that to the Jewish mind back then, it took 3 days for the spirit to leave the body before it was considered undeniably dead. This is why Jesus waited until the third day before visiting Lazarus; so that all there would know Lazarus was dead and that He was raised from the dead, rather than simply “healed” by Jesus were He to have raised him before three days expired.