Do not allow anyone to deceive you in any way, for it will not occur until the rebellion comes first and the man of lawlessness becomes evident. [Note: This "rebellion" refers to a significant falling away from the teaching and practice of true Christianity (See I Tim. 4:1), characterized by the rise of an authoritarian religious leader]. This man is doomed to be destroyed

[But] for now, there is something holding him back [i.e., holding back the man of lawlessness from emerging, See verses 3-4], and you people know what it is. [It is restraining him] so that he will not be revealed until his own [due] time.

And then the lawless person [See verse 3] will be revealed, the one whom the Lord Jesus will destroy with the breath of His mouth and bring to an end by the brilliant appearance of His presence [i.e., at His second coming].

Now we command you, brothers, in the name [i.e., by the authority] of our Lord Jesus Christ, that you people stay away from every brother [or sister] who lives an idle life [See note on I Thess. 5:14], and not according to the [inspired] tradition which you received from us.