However, despite Hamas' inflammatory rhetoric against Israel, the movement has not officially claimed responsibility for any military action from Gaza against Israel since the 2014 war.
Israeli officials have tried to dissuade the terror group, warning of a harsh retaliation by the IDF.
In the video, Mordechai said that Israel is "aware of the plot that the Palestinian Islamic Jihad is planning against Israel", and warned that "any attack by the Islamic Jihad will be met with a powerful and determined Israeli response, not only against the Jihad, but also against Hamas".
Israel has been targeting the Islamic Jihad movement following the Israeli-led attack on the Gaza Strip's cross-border tunnel, fearing revenge by the movement. "We advise the Islamic Jihad leadership in Damascus to be careful and get things under control", he continued.
The Islamic Jihad responded by saying that the IDF's statement was a "declaration of war".
Israeli forces yesterday arrested senior Islamic Jihad leader Tariq Qa'adan after they stormed his house in the West Bank's northern occupied city of Jenin.
They, however, say the tunnels are needed to transfer essential supplies, including food and fuel, into the Palestinian territory, which has been under a crippling Israeli siege for over a decade.
The IDF said that the tunnel's opening was at least two kilometers away from the closest Israeli community of Kissufim, and did not pose a threat to residents.
But the Al-Hayat report said that Islamic Jihad was undecided on what to do in the wake of the tunnel demolition.
The IDF later revealed it is holding the bodies of five, likely to use as bargaining chips in negotiations over the release of Israeli captives and fallen IDF soldiers.
Palestinian resistance group Hamas on Monday condemned a United Nations envoy for "holding Palestinian groups accountable for every tension with Israel".
Like the posters of Palestinian Authority (PA) President Mahmoud Abbas and his predecessor Yasser Arafat plastered on the walls at the Erez checkpoint, the flags celebrate an Egyptian-sponsored Palestinian reconciliation process, meant to end a decade-long split between Abbas' Fatah faction and Hamas, who have been ruling Gaza since 2007.
The arrest came after the country threatened that it would respond to a possible attack in response to Israel's destroying a cross-border tunnel two weeks ago, killing 10 of the group's fighters and two belonging to Hamas.
On Sunday, Prime Minister Benjamin Netanyahu added his own warning addressed to those contemplating an attack. "There are those who still amuse themselves these days by trying to renew attacks against Israel", Netanyahu remarked at the beginning of the weekly cabinet meeting on Sunday. "We will take a very strong hand against anyone who tries to attack us or attacks us from any theater". "In any case, we see Hamas as responsible for every attack that emanates from, or is planned against us in, the Gaza Strip", he said.