For neither they themselves who are circumcised keep the law; but desire to have you circumcised, that they may glory in your flesh.
When the world tries to persuade you into doing what they do, they are not doing it because they care about you, they make you their friend, and makes you scared to stand up for God for fear of losing the friendship, their desire is to have people like you and me, following them so that they can say look at all the followers i have, and not doing it because the truly care about you. or to have a relationship that is used to encourage one another, their reasons are selfish!
James 4:4 Ye adulterers and adulteresses, know ye not that the friendship of the world is enmity with God? whosoever therefore will be a friend of the world is the enemy of God.