King James Version
And that because of false brethren unawares brought in, who came in privily to spy out our liberty which we have in Christ Jesus, that they might bring us into bondage:English Standard Version
Yet because of false brothers secretly brought in--who slipped in to spy out our freedom that we have in Christ Jesus, so that they might bring us into slavery--Catholic Public Domain Version
but only because of false brothers, who were brought in unknowingly. They entered secretly to spy on our liberty, which we have in Christ Jesus, so that they might reduce us to servitude