'Soon' in the Bible

I marvel that ye are so soon removed from him that called you into the grace of Christ unto another gospel:

For until certain persons came from James he had been accustomed to eat with Gentiles; but as soon as these persons came, he withdrew and separated himself for fear of the Circumcision party.

But when I saw that they were not being straightforward about the truth of the gospel, I told Cephas (Peter) in front of everyone, “If you, being a Jew, live [as you have been living] like a Gentile and not like a Jew, how is it that you are [now virtually] forcing the Gentiles to live like Jews [if they want to eat with you]?”

Before this faith came, we Jews were perpetual prisoners under the Law, living under restraints and limitations in preparation for the faith which was soon to be revealed.