Where did Jesus warn that imposters would come after him?

Answer 1

Matthew 7:15

"Watch out for false prophets who come to you in sheeps' clothing but inwardly they are ferocious wolves.

16 By their fruit you will recognise them. Do people pick grapes from thorn bushes, or figs from thistles?

17 Likewise every good tree bears good fruit, but a bad tree bears bad fruit.

18 A good tree cannot bear bad fruit, and a bad tree cannot bear good fruit.

19 Every tree that does not bear good fruit is cut down and thrown into the fire.

20 Thus by their fruit you will recognise them."

Matthew 24:23-26

23 At that time if anyone says to you, 'Look, here is the Messiah!' or, 'There he is!' do not believe it. 24 For false messiahs and false prophets will appear and perform great signs and wonders to deceive, if possible, even the elect. 25 See, I have told you ahead of time.

26 "So if anyone tells you, 'There he is, out in the wilderness,' do not go out; or, 'Here he is, in the inner rooms,' do not believe it