Aineo,
Easter was celebrated by pagans hundreds of years before Jesus Christ came to earth. If Easter was a true christian holiday, which it isn't, Herod would have probably have delivered Peter to the people right on Easter, but he didn't because Easter is a pagan festival and Herod observed it, and that is why he waited until after Easter. Remember in Acts 12, passover was over, for it was the feast of unleavened bread which comes after passover, so why would Herod wait until after passover to have Peter killed when passover had already passed? remember, it was now the feast of unleavened bread as it said in verse 3, which was after passover. It wouldn't make sense for it to say, "Intending after passover to bring him forth to the people", when passover had already passed. Passover came first, THEN the feast of unleavened bread, which was the time that Peter was apprehended, and then after Easter came and went, Herod delivered Peter to the people. How could Herod have Peter at the feast of unleavened bread and waiting until after passover to have him delivered to the people when passover was before the feast of unleavened bread? Again the KJV is correct when it says, "........intending after Easter to bring him forth to the people." Passover, THEN the Feast of Unleavened Bread, Then Easter, THEN Peter was delivered.
There is no trace of Easter celebration in the New Testament because Easter is not a christian holiday, not really. "Christ our passover is sacrificed for us" as it says in 1 Cor. 5:7, which has nothing to do with Easter, a festival that Herod waited until it was over to deliver Peter. Verse 8 says, "Therefore let us keep the feast, not with old leaven,, neither with the leaven of malice and wickedness; but with the unleavened bread of sincerity and truth." The old leven would refer to the passover of the old testament, and the pagan festival of Easter is wicked. We as christians should have nothing to do with Easter and as far as passover goes, us christians have Christ as our passover. The KJV has "passover" in Matt.26:2, 17, 18, 19, Mark 14:1, 12, 14, 16, Luke 2:41, 22:1, 7, 8, 11, 13, 15, John 2:13, 23, 6:4, 11:55, 12:1, 13:1, 18:28, 39, 19:14, 1 Cor. 5:7, Heb. 11:28, but didn't put it in Acts 12:4 because 'Easter "was the correct word. Of all the times that "passover" is in the KJV, there had to be a reason why the KJV translators didn't put that same word in Acts 12:4. I believe they knew what they were doing. Those 54 translators were divided into groups of 6, and all 6 agreed that "Easter", not "passover" should be in Acts.12.