The word Easter is only mentioned one time in the
Bible. It's in the book of Acts 12:1 Now about that time Herod the king stretched forth his hands to vex
certain of the church. 2And he killed James the brother of John with
the sword. 3And because he saw it pleased the
Jews, he proceeded further to take Peter also. (Then were the days of unleavened bread.)
This is Passover. And when he had apprehended him, he put
him in prison, and delivered him to four quaternions of
soldiers to keep him, intending after Easter to bring him forth to
the people.
The definition of Easter according to Vines
complete expository dictionary of old and new testament
words is --- Easter in Acts 12:4, King James
Version denotes the Passover. The phrase "after the Passover" signifies after the whole festival was at
an end. The term Easter is not of Christian origin. It is another form of Astarte, one of the titles of the Chaldean goddess, the queen of heaven. The festival of Pasch
held by Christians in post-apostolic times was a
continuation of the Jewish feast, but was not instituted by
Christ,
From this
Pasch the pagan festival of "Easter" was quite distinct and
was introduced into the apostate Western
religion, as part of the attempt to adapt pagan festivals to
Christianity,