Severus Snape.
He overheard part of the prophecy delivered to Dumbledore by Sibyll Trelawney and relayed that information to Voldemort. Voldemort identified Harry Potter and Neville Longbottom as the two possible subjects of the prophecy and decided Harry was the right one - and killed his parents (including Lilly) to get to Harry.
Snape overheard the prophecy about a boy born at the end of July that is going to defeat the Dark Lord and told Voldemort and he thought it was Harry so he tried killing harry and his mother was in his way
In "Harry Potter and the Order of the Phoenix," the prophecy is spoken by Sybill Trelawney, the Divination professor at Hogwarts, during an interview with Albus Dumbledore. The prophecy reveals that a child born at the end of July will have the power to defeat Voldemort. However, the prophecy is partially overheard by Severus Snape, who later informs Voldemort, leading to the tragic events surrounding Harry and his parents.
"The big deal" is that it's what prompted Voldemort to go after Harry in the first place. The prophecy speaks of an enemy with powers to match the Dark Lord's -- that's Harry. Voldemort attacked Harry because of the prophecy, because he believed that the person of whom the prophecy spoke was his one and only threat. No prophecy=no Harry Potter books. ;)
Answer: because he has more power than him Answer: It is all about the prophecy. Voldemort is worried, precisely because of the prophecy, about the possibility that Harry Potter may eventually defeat him.
Row 97, if you were asking about "The Prophecy" in Harry Potter and the Order of the Phoenix. SOURCE: Harry Potter and the Order of the Phoenix by JK Rowling, Chapter 34: The Department of Mysteries
This is revealed in a later book. Voldemort heard about a certain prophecy, according to which a child, born in July, might cause his downfall. This may have referred to Harry Potter or Neville Longbottom; for some reason, Voldemort decided it referred to Harry Potter - and the very fact that he tried to kill him caused the prophecy to refer to Harry Potter.This is revealed in a later book. Voldemort heard about a certain prophecy, according to which a child, born in July, might cause his downfall. This may have referred to Harry Potter or Neville Longbottom; for some reason, Voldemort decided it referred to Harry Potter - and the very fact that he tried to kill him caused the prophecy to refer to Harry Potter.This is revealed in a later book. Voldemort heard about a certain prophecy, according to which a child, born in July, might cause his downfall. This may have referred to Harry Potter or Neville Longbottom; for some reason, Voldemort decided it referred to Harry Potter - and the very fact that he tried to kill him caused the prophecy to refer to Harry Potter.This is revealed in a later book. Voldemort heard about a certain prophecy, according to which a child, born in July, might cause his downfall. This may have referred to Harry Potter or Neville Longbottom; for some reason, Voldemort decided it referred to Harry Potter - and the very fact that he tried to kill him caused the prophecy to refer to Harry Potter.
In the prophecy it says"neither can live while the other survives". So Harry and Voldemort have to die, so one of them can survive.
In Harry Potter and the Order of the Phoenix a prophecy about Harry and Voldemort is discovered. In short the prophecy states that the one born (being interpreted as Harry) will be marked as Voldermorts equal and have power to defeat him. Because, in other words neither if them can "survive" while the other is still alive.
Actually his main target was Harry Potter. The reason he wanted to kill him was because of a prophecy.
In "Harry Potter and the Order of the Phoenix," the square stone in the stone circle is part of the prophecy that Harry and his friends seek to retrieve from the Department of Mysteries. When activated, it reveals the prophecy related to Harry and Voldemort, which can only be understood by the person it pertains to. The stone itself serves as a crucial element in the narrative, highlighting the importance of the prophecy in the wider battle against Voldemort.
The Harry Potter prophecy can be found on pg. 841 of Harry Potter and the order of the phoenix and basically says that a child will be born at the end of July to parents who defeated lord voldemort 3 times, voldemort will mark that child as his equal, but the child will have a power that voldemort doesn't, and "And either must die at the hand of the other for neither can live while the other survives."- Professor Trelawney. the prophecy can apply to either Harry or Neville Longbottom but as Voldemort chose Harry by trying to kill him it means Harry.