JERUSALEM — He has the pedigree: Meir Ettinger is a grandson and the namesake of Meir Kahane, the slain American-Israeli rabbi considered the father of far-right Jewish militancy.

He has the record: For years, Mr. Ettinger has joined the radical group of Israeli settlers known as the hilltop youth in clashes with Palestinians and Israeli forces, leading to a ban on his entering Jerusalem or the occupied West Bank.

He also has the ideology: In a series of Bible-quoting blog posts that amount to a manifesto, Mr. Ettinger calls for the “dispossession of gentiles” who inhabit the Holy Land and the replacement of the modern Israeli state with a new “kingdom of Israel” ruled by the laws of the Torah.

“The key is not to seek to delay the explosion,” he wrote on July 22, “but to try to bring it on as soon as possible and on our own initiative.”