Galatians 2:3; Galatians 4:1; Galatians 4:8; Galatians 6:3

3 But neither Titus, who was with me, being a Greek, was compelled to be circumcised :
1 Now I say , That the heir, as long as he is a child, differeth nothing from a servant, though he be lord of all;
8 Howbeit then , when ye knew not God, ye did service unto them which by nature are no gods.
3 For if a man think himself to be something, when he is nothing, he deceiveth himself.