There are "signs", given regarding second coming of Christ in the Bible and in the Quran, and Hadithes. If someone claims to be a Christ today, if his coming does not match with the signs given in Previous Holy Books, then you know it is not really Him.
The first "prophesy" that Baha'is told me was John 16:12-13
12 I have yet many things to say unto you, but ye cannot bear them now.
13 Howbeit when he, the Spirit of truth, is come, he will guide you into all truth: for he shall not speak of himself; but whatsoever he shall hear, that shall he speak: and he will shew you things to come.
So clear, so obvious, here's Jesus telling them about a future prophet of God that is going to come and teach them all things. Things they couldn't understand now, "bear", but in the future, they would.
Then Born-Again Christians told me the verse was speaking of the coming of the Holy Spirit on Pentecost.
Acts 2:1 When the day of Pentecost came, they were all together in one place. 2 Suddenly a sound like the blowing of a violent wind came from heaven and filled the whole house where they were sitting. 3 They saw what seemed to be tongues of fire that separated and came to rest on each of them. 4 All of them were filled with the Holy Spirit and began to speak in other tongues[
a] as the Spirit enabled them.
Yeah, so clear, so obvious. Jesus promised to send the Holy Spirit.
John 14:15 “If you love me, keep my commands. 16 And I will ask the Father, and he will give you another advocate to help you and be with you forever— 17 the Spirit of truth.
25 “All this I have spoken while still with you. 26 But the Advocate, the Holy Spirit, whom the Father will send in my name, will teach you all things and will remind you of everything I have said to you.
Some people are going to believe the Baha'i interpretation. Some people believe what the Born-Again Christians say. But "signs" and prophesies can be made to mean pretty much whatever a person wants them to mean.
Like these verses in Isaiah... Two enemy Kings were going to invade Judah, but Isaiah tells the King Ahaz of Judah...
Isaiah 7:7 Yet this is what the Sovereign Lord says:
“‘It will not take place,
it will not happen...
Isaiah tells him to ask God for a sign. King Ahaz refuses. Isaiah then tells him a sign anyway...
7:13 Then Isaiah said, “Hear now, you house of David! Is it not enough to try the patience of humans? Will you try the patience of my God also? 14 Therefore the Lord himself will give you a sign: The virgin (or, young maiden) will conceive and give birth to a son, and will call him Immanuel. 15 He will be eating curds and honey when he knows enough to reject the wrong and choose the right, 16 for before the boy knows enough to reject the wrong and choose the right, the land of the two kings you dread will be laid waste. 17 The Lord will bring on you and on your people and on the house of your father a time unlike any since Ephraim broke away from Judah—he will bring the king of Assyria.”
So clear, so obvious, before the boy knows enough to reject wrong and choose right, whenever that is, the two enemy kings will be dead. But then another enemy, the king of Assyria, is going to come conquer them?
Well anyway, that's what I thought was so obvious about these verses. But then the writer of the gospel of Matthew takes one verse and makes it a prophecy about Jesus.
Matthew 1:22 All this took place to fulfill what the Lord had said through the prophet: 23 “The virgin will conceive and give birth to a son, and they will call him Immanuel” (which means “God with us”).
So clear, so obvious... that he cherry-picked one verse out of context and made it into one of the greatest "signs" or prophesies... The virgin birth of Jesus.
It is so clear and obvious to Christians. A prophesy about Jesus. That he had no human father. Mary was a virgin. Therefore, he is literally the Son of God.
Who's right? The Christians or the Jews that rejected Jesus as their Messiah? All depends on what a person chooses to believe.
Signs and prophesies aren't all that clear and obvious.