It simply means that certain individuals are unsettling you; they want to distort the gospel of Christ.

But I let you know, brethren, as to the glad tidings which were announced by me, that they are not according to man.

and how in devotion to Judaism I outstripped many men of my own age among my people, being far more zealous than they on behalf of the traditions of my forefathers.

But they heard only, that he which persecuted us in time past, now preacheth the faith, which before he destroyed.

And they glorified God on my behalf.

[It was] in response to [a divine] revelation that I went [there] and explained to them [I. e., the apostles and elders] the Gospel [message] that I had been preaching among the Gentiles. Then [later on I presented it] privately before those who were highly regarded [i.e., the three apostles, verse 9] so [they would have verification that] my running [i.e., ministry] had not been, nor was now, in vain.

But they did not even try to compel my companion, Titus, although he was a Greek, to be circumcised --

and that because of incomers, being false brethren, which came in among others to spy out our liberty which we have in Christ Jesus, that they might bring us into bondage.

Of them which seemed to be great - what they were in time passed it maketh no matter to me: God looketh on no man's person - nevertheless they seemed great, added nothing to me:

But contrariwise, when they saw that the gospel over the uncircumcision was committed unto me, as the gospel over circumcision was unto Peter -

and therefore when James, Cephas, and John, which seemed to be pillars, perceived the grace that was given unto me, they gave to me and Barnabas the righthands, and agreed with us that we should preach among the heathen, and they among the Jews:

Only they wanted us to remember the poor; the very thing that I was eager to do.

For yer that certain came from James, he ate with the gentiles: but when they were come, he withdrew and separated himself, fearing them which were of the circumcision,

But when I saw that they went not the right way after the truth of the gospel, I said unto Peter, before all men, "If thou, being a Jew, livest after the manner of the gentiles, and not as do the Jews: why causest thou the gentiles to live as do the Jews?"

Understand, therefore, that they which are of faith, the same are the children of Abraham.

So then, they which be of faith are blessed with faithful Abraham.

but they that rest themselves upon the works of the law, are obnoxious to the curse: for it is written, " cursed is every one, who continueth not in all things, which are written in the book of the law, to do them:"

They are jealous over you amiss. Yea they intend to exclude you, that ye should be fervent to them ward.

I would to God they were separated from you, which trouble you.

For what the flesh wants is opposed to the Spirit, and what the Spirit wants is opposed to the flesh. They are opposed to each other, and so you do not do what you want to do.

Now the works of the flesh are well known, and they are these lewdness, uncleanness, wantonness,

envying, murder, drunkenness, gluttony, and such like. Of the which I tell you before, as I have told you in time past, that they which commit such things shall not inherit the kingdom of God.

They that are Christ's have crucified the flesh, with the appetites and lusts.

As many as desire with outward appearance to please carnally, they constrain you to be circumcised, only because they would not suffer persecution with the cross of Christ.

For they themselves which are circumcised keep not the law: but desire to have you circumcised that they might rejoice in your flesh.

May all who rule their conduct by this principle find peace and mercy--they who are the Israel of God.