JERUSALEM, Israel — Israel’s security cabinet convened Friday to decide whether to approve a deal that would release dozens of hostages held by Hamas in Gaza and pause the 15-month-war. If the cabinet approves, the deal will then go to the government for final sign-off before the ceasefire goes into effect.

President Biden and key mediator Qatar announced the deal on Wednesday, which is aimed at releasing scores of hostages held in Gaza and winding down the war that has destabilized the Middle East and sparked worldwide protests.

Friday’s meeting comes after Prime Minister Netanyahu’s office said earlier there were last minute snags in finalizing the agreement. Israel had delayed a security cabinet vote Thursday, blaming the dispute with Hamas for holding up approval. However, a pre-dawn statement appeared to clear the way for the deal to be voted on by the security cabinet.

Mr. Netanyahu said he had instructed a special task force to prepare to receive the hostages returning from Gaza, and that their families were informed the deal had been reached. The Prime Minister’s office said that if a deal is passed, the ceasefire could start Sunday with the first hostages released.

Under the deal, 33 of some 100 hostages who remain in Gaza are set to be released over the next six weeks in exchange for hundreds of Palestinians imprisoned by Israel. Israeli forces will pull back from many areas, hundreds of thousands of Palestinians would be able to return to what’s left of their homes, and there would be a surge of humanitarian assistance.

The remainder of the hostages, including male soldiers, are to be released in a second — and much more difficult — phase that will be negotiated during the first.

Hamas has said it will not release the remaining captives without a lasting ceasefire and a full Israeli withdrawal, while Israel has vowed to keep fighting until it dismantles the terror group and to maintain open-ended security control over the territory.

Longer-term questions about postwar Gaza remain, including who will rule the territory or oversee the daunting task of reconstruction.

An Egyptian official and a Hamas official confirmed that the last-minute issues were over the list of Palestinian prisoners to be released from Israeli jails during phase one of the deal, but those have now been resolved. Both officials spoke on condition of anonymity to discuss the negotiations. The Hamas official said mediators showed the group Israel’s approval.

The Egyptian official added that an Israeli delegation from the military and Israel’s Shin Bet internal security agency arrived at Cairo Friday morning to discuss the reopening of Rafah crossing, a key link between the Gaza Strip and Egypt. An Israeli official who also spoke on condition of anonymity to discuss the negotiations confirmed a delegation was going to Cairo to discuss the crossing.

The agreement has drawn fierce resistance from Mr. Netanyahu’s more conservative coalition partners, which the Israeli prime minister depends on to remain in power. On Thursday, Israel’s hard-line national security minister, Itamar Ben-Gvir, threatened to quit the government if Israel approved the ceasefire. On Friday, Mr. Ben-Gvir wrote on X “if the ‘deal’ passes, we will leave the government with a heavy heart.”

Mr. Ben-Gvir’s resignation would not bring down the government or derail the ceasefire deal, but the move would destabilize the government at a delicate moment and could lead to its collapse if Mr. Ben-Gvir were joined by other key Netanyahu allies.

Meanwhile, the fighting continues in Gaza, with Israeli strikes killing at least 72 people on Thursday. In previous conflicts, both sides have stepped up military operations in the final hours before ceasefires as a way to project strength. Hamas triggered the war with its October 7, 2023, cross-border attack into Israel that killed some 1,200 people and took 250 others hostage.