For false Christs and false prophets shall rise
 As there did, both before and after the destruction of Jerusalem: 
 and shall show signs and wonders;
 as they pretended to do, and did, at least to the appearance of people: 
 to seduce, if it were possible, even the elect;
 who were chosen in Christ, unto eternal life; in consequence of which they truly believed in him, and were constant followers of him; but this was not possible: though such was the force of their deception, that there was apparent danger of it, were it not for the power and grace of God; (See Gill on Matthew 24:24).