Read 2 Thessalonians 3:6-11
6 Now we command you, brethren, in the name of our Lord Jesus Christ, that ye withdraw yourselves from every brother that walketh disorderly, and not after the tradition which he received of us. 7 For yourselves know how ye ought to follow us: for we behaved not ourselves disorderly among you; 8 Neither did we eat any man's bread for nought; but wrought with labour and travail night and day, that we might not be chargeable to any of you: 9 Not because we have not power, but to make ourselves an ensample unto you to follow us. 10 For even when we were with you, this we commanded you, that if any would not work, neither should he eat. 11 For we hear that there are some which walk among you disorderly, working not at all, but are busybodies.
Quotes from Commentaries on this passage:
Paul says that idle and lazy persons ought not to be supported by the Church; indeed, they are not to be endured.
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.
Not to associate with members of the church who by their sins disgrace their profession, is one of the divinely appointed means for bringing them to repentance, and thus preventing their ruin.
Note, It is a great error, or abuse of religion, to make it a cloak for idleness or any other sin. If we were sure that the day of judgment were ever so near, we must, notwithstanding, do the work of the day in its day, that when our Lord comes he may find us so doing. The servant who waits for the coming of his Lord aright must be working as his Lord has commanded, that all may be ready when he comes. Matthew Henry
So, the genuine Christian is one that is busy about His Master's business...not one that is sitting around the house watching TV.