Barnes Notes on the 3 verses
*** 1Co 11:2 Verse 2. Now I praise you, brethren. Paul always chose to commend Christians when it could be done, and never seemed to suppose that such praise would be injurious to them. See [1Co 1:4]; See [1Co 1:5]. On this occasion he was the more ready to praise them, as far as it could be done, because there were some things in regard to them in which he would have occasion to reprove them.
That ye remember me in all things. That you are disposed to regard my authority and seek my direction in all matters pertaining to the good order of the church. There can be little doubt that they had consulted him in their letter (#1Co 7:1) about the proper manner in which a woman ought to demean herself if she was called upon, under the influence of Divine inspiration, to utter anything in public. The question seems to have been, whether, since she was inspired, it was proper for her to retain the marks of her inferiority of rank, and remain covered; or whether the fact of her inspiration did not release her from that obligation, and make it proper that she should lay aside her veil, and appear as public speakers did among men. To this the apostle refers, probably, in the phrase "all things," that even in matters of this kind, pertaining to the good order of the church, they were disposed to regard his authority.
And keep the ordinances. Margin, Traditions, (~tav paradoseiv~). The word does not refer to anything that had been delivered down from a former generation, or from former times, as the word tradition now usually signifies; but it means that which had been delivered to them, (~paradidwmi~

i.e., by the apostles. The apostles had delivered to them certain doctrines, or rules, respecting the good order and the government of the church; and they had in general observed them, and were disposed still to do it. For this disposition to regard his authority, and to keep what he had enjoined, he commends them. He proceeds to specify what would be proper in regard to the particular subject on which they had made inquiry.
{b} "that ye" #1Co 4:17
{c} "keep" #Lu 1:6
{1} "ordinances" "traditions"
*** 2Thess 2:15 Believers Should Be Established In The Word (2:13-17)
Paul is referring to what he had taught them when he was with them. It is the Word which enables the believer to stand and be stable.
Verse 15. Therefore. In view of the fact that you are thus chosen from eternity, and that you are to be raised up to such honour and glory.
Stand fast. Amidst all the temptations which surround you. Comp. See [Eph 6:10] and following.
And hold the traditions which ye have been taught. On the word traditions, See [Mt 15:2]. It means properly things delivered over from one to another; then anything orally delivered--any precept, doctrine, or law. It is frequently employed to denote that which is not written, as contradistinguished from that which is written, (comp. #Mt 15:2,) but not necessarily or always; for here the Apostle speaks of the "traditions which they had been taught by his epistle." Comp. See [1Co 11:2]. Here it means the doctrines or precepts which they had received from the apostle, whether when he was with them, or after he left them; whether communicated by preaching or by letter. This passage can furnish no authority for holding the "traditions" which have come down from ancient times, and which profess to have been derived from the apostles; for
(1.) there is no evidence that any of those traditions were given by the apostles;
(2.) many of them are manifestly so trifling, false, and contrary to the writings of the apostles, that they could not have been delivered by them;
(3.) if any of them are genuine, it is impossible to separate them from those which are false,
(4.) we have all that is necessary for salvation in the written word; and
(5.) there is not the least evidence that the apostle here meant to refer to any such thing. He speaks only of what had been delivered to them by himself, whether orally or by letter; not of what was delivered from one to another as from him. There is no intimation here that they were to hold anything as from him which they had not received directly from him, either by his own instructions personally or by letter. With what propriety, then, can this passage be adduced to prove that we are to hold the traditions which professedly come to us through a great number of intermediate persons? Nowhere is the evidence here that the church was to hold those unwritten traditions, and transmit them to future times?
Whether by word. By preaching, when we were with you. It does not mean that he had sent any oral message to them by a third person.
Or our epistle. The former letter which he had written to them.
{*} "Traditions" "doctrines"
*** 2Thess 3:6 Now we command you, brethren. The apostle now #2Th 3:6-12 turns to an important subject--the proper method of treating those who were idle and disorderly in the church. In the previous epistle he had adverted to this subject, but in the mild language of exhortation. When he wrote that epistle he was aware that there were some among them who were disposed to be idle, and he had tenderly exhorted them "to be quiet, and to mind their own business, and to work with their own hands," #1Th 4:11. But it seems the exhortation, and the example of Paul himself when there, #1Th 2:9, had not been effectual in inducing them to be industrious. It became, therefore, necessary to use the strong language of command, as he does here, and to require that if they would not work, the church should withdraw from them. What was the original cause of their idleness, is not known. There seems no reason, however, to doubt that it was much increased by their expectation that the Saviour would soon appear, and that the world would soon come to an end. If this was to be so, of what use would it be to labour? Why strive to accumulate property with reference to the wants of a family, or to a day of sickness, or old age? Why should a man build a house that was soon to be burnt up, or why buy a farm which he was so soon to leave? The effect of the expectation of the speedy appearing of the Lord Jesus has always been to induce men to neglect their worldly affairs, and to lead idle lives. Man, naturally disposed to be idle, wants the stimulus of hope that he is labouring for the future welfare of himself, for his family, or for society, nor will he labour if he believes that the Saviour is about to appear.
In the name of the Lord Jesus Christ.--See [1Co 5:4].
That ye withdraw yourselves. See [1Ti 6:6]. This is the true notion of Christian discipline. It is not primarily that of cutting a man off, or denouncing him, or excommunicating him; it is that of withdrawing from him. We cease to have fellowship with him. We do not regard him any longer as a Christian brother. We separate from him. We do not seek to affect him in any other respect; we do not injure his name or standing as a man, or hold him up to reprobation; we do not follow him with denunciation or a spirit of revenge; we simply cease to recognize him as a Christian brother, when he shows that he is no longer worthy to be regarded as such. We do not deliver him over to the civil arm; we do not inflict any positive punishment on him; we leave him unmolested in all his rights as a citizen, a man, a neighbour, a husband, a father, and simply say that he is no longer one of us as a Christian. How different is this from excommunication, as it has been commonly understood! How different from the anathemas fulminated by the Papacy, and the delivering of the heretic over to the civil power!
From every brother that walketh disorderly. See [1Co 5:11], also #1Co 5:12-13. A "disorderly walk" denotes conduct that is in any way contrary to the rules of Christ. The proper idea of the word used here (~ataktwv~,) is that of soldiers who do not keep the ranks; who are regardless of order; and then who are irregular in any way. The word would include any violation of the rules of Christ on any subject.
And not after the tradition which ye received of us. According to the doctrine which we delivered to you. See [2Th 2:15]. This shows that by the word "tradition" the apostle did not mean unwritten doctrines handed down from one to another, for he evidently alludes to what he had himself taught them, and his direction is not that that should be handed down by them, but that they should obey it.
{a} "withdraw yourselves" #1Ti 6:5
{b} "every brother that walketh disorderly" #1Co 5:11,13
{*} "received of us" "doctrine which you received of us"