Galatians 5:16–17 But I say, walk by the Spirit, and you will not carry out the desire of the flesh. For the flesh sets its desire against the Spirit, and the Spirit against the flesh; for these are in opposition to one another, so that you may not do the things that you please.
Online forums can be a great place to fellowship and learn about one another. It is also a good place to try and understand the beliefs of other Christians as well as to re-examine one's own beliefs.
Unfortunately it can also be an unkind (even unChristian) environment if not kept in check.
How does walking in the Spirit apply to our online interactions?
Historically, there is a context to Ga 5. It follows the logical reasoning for the initial purpose Paul wrote the letter to these gentiles, whom he and others had won to Christ on his first missionary journey from Antioch, Syria. He wrote the letter as a rebuke to these churches because they were following the teaching of false apostles, who claimed to believe in Christ, but added circumcision and keeping portions of the law of Moses as the test of ones salvation. This was a departure from the faith. This letter then becomes instruction for us today, some 2000 years later.
The problem in the Galatians area was so insidious that it caused contention among the apostles, with Paul rebuking Peter for his inconsistencies. An apostle of Jesus Christ being led astray by the false teachers on the foundation of Christianity should demonstrate the power of the devil and the dangers that we face today. Barnabas, the companion of Paul on his first preaching tour to gentiles, was also compromised in his resolve to stand for the truth by this grand attack. What if Paul had not recognized this problem and boldly acted as he did? What if we did not have the letter to the Galatians today? What if one of us was called on to rebuke the teachers of false doctrine that compromised the fundamentals of the faith? Speaking for myself, I probably do not have that kind of courage and resolve. It does reminds me of a proverb - open rebuke is better than secret love.
Here is the context for Ga 5, where walking in the flesh is identified with adding works to grace for one's justification and salvation, particularly keeping the Law of Moses. Walking in the Spirit is following the Lord who has indwelt us with his Spirit and has set us free from our own efforts in salvation. In Galatians salvation is defined by receiving the promised Spirit of Christ to dwell in the body, making the saved one a son of God. It is the new birth, a new creature, the very thing that Paul says is of utmost importance.
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14 But God forbid that I should glory, save in the cross of our Lord Jesus Christ, by whom the world is crucified unto me, and I unto the world. 15 For in Christ Jesus neither circumcision availeth any thing, nor uncircumcision, but a new creature).
Ga 1:6 I marvel that ye are so soon removed from him that called you into the grace of Christ unto another gospel:
7 Which is not another; but there be some that trouble you, and would pervert the gospel of Christ.
8 But though we, or an angel from heaven, preach any other gospel unto you than that which we have preached unto you, let him be accursed.
9 As we said before, so say I now again, if any man preach any other gospel unto you than that ye have received, let him be accursed.
10 For do I now persuade men, or God? or do I seek to please men? for if I yet pleased men, I should not be the servant of Christ.
11 But I certify you, brethren, that the gospel which was preached of me is not after man.
12 For I neither received it of man, neither was I taught it, but by the revelation of Jesus Christ.
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Ga 2:11
But when Peter was come to Antioch, I withstood him to the face, because he was to be blamed.
12 For before that certain came from James, he did eat with the Gentiles: but when they were come, he withdrew and separated himself, fearing them which were of the circumcision.
13 And the other Jews dissembled likewise with him;
insomuch that Barnabas also was carried away with their dissimulation.
14 But when I saw that they walked not uprightly according to the truth of the gospel, I said unto Peter before them all, If thou, being a Jew, livest after the manner of Gentiles, and not as do the Jews, why compellest thou the Gentiles to live as do the Jews?
15 We who are Jews by nature, and not sinners of the Gentiles,
16 Knowing that a man is not justified by the works of the law, but by the faith of Jesus Christ, even we have believed in Jesus Christ, that we might be justified by the faith of Christ, and not by the works of the law: for by the works of the law shall no flesh be justified.
17 But if, while we seek to be justified by Christ, we ourselves also are found sinners, is therefore Christ the minister of sin? God forbid.
18 For if I build again the things which I destroyed, I make myself a transgressor.
19 For I through the law am dead to the law, that I might live unto God.
20 I am crucified with Christ: nevertheless I live; yet not I, but Christ liveth in me: and the life which I now live in the flesh I live by the faith of the Son of God, who loved me, and gave himself for me.
21 I do not frustrate the grace of God: for if righteousness come by the law, then Christ is dead in vain.
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The problem with these boards is their rules often times makes dealing with false doctrines an offense and they are far more worried that the perpetrator is offended than is Jesus Christ, who has given us a gracious salvation by such a tremendous sacrifice of himself, but has made it a very narrow way. One may not deviate from the foundation of this salvation in him by the cross.
Paul to the Galatians because they were fooled by these men who "believed" in Jesus but did not believe what God said;
Ga 4:19 My little children, of whom I travail in birth again until Christ be formed in you,
20 I desire to be present with you now, and to change my voice; for I stand in doubt of you.
My guess is that if Paul would have been speaking to these lost Jesus believers that he named here in Galatians on most message boards, he would have been banned for being unkind and unchristian.
Seasoned men who had traveled and had ministered with Jesus during his earthly ministry, Peter and Barnabas, were led astray by these false teachers. If this could happen to them, should it not be a warning to us?
Here these men are in Antioch;
Acts 15:1 And certain men which came down from Judaea taught the brethren, and said, Except ye be circumcised after the manner of Moses, ye cannot be saved.
2 When therefore Paul and Barnabas had no small dissension and disputation with them, they determined that Paul and Barnabas, and certain other of them, should go up to Jerusalem unto the apostles and elders
Here is another group.
5 But there rose up certain of the sect of the Pharisees which believed, saying, That it was needful to circumcise them, and to command them to keep the law of Moses.
6 And the apostles and elders came together for to consider of this matter.
There are many more variations of the gospel of Christ these days and there is danger all around.