23 "Then if anyone tells you, 'Look, here is the Christ,' or, 'There,' do not believe it.
Matthew 24:23 Cross References - NHEB
Deuteronomy 13:1-3
1 If there arise in the midst of you a prophet, or a dreamer of dreams, and he give you a sign or a wonder,
2 and the sign or the wonder come to pass, of which he spoke to you, saying, "Let us go after other gods" (which you have not known) "and let us serve them";
3 you shall not listen to the words of that prophet, or to that dreamer of dreams: for the LORD your God proves you, to know whether you love the LORD your God with all your heart and with all your soul.
Mark 13:21
21 Then if anyone tells you, 'Look, here is the Christ.' or, 'Look, there.' do not believe it.
Luke 17:23-24
Luke 21:8
8 He said, "Watch out that you do not get led astray, for many will come in my name, saying, 'I am he,' and, 'The time is near.' Therefore do not follow them.
John 5:43
43 I have come in my Father's name, and you do not receive me. If another comes in his own name, you will receive him.