Why is the Israeli Prime Minister speaking in two voices on the ceasefire? On one hand he is thanking and on the other hand he is calling the deal incomplete

Israeli Prime Minister Benjamin Netanyahu said that the ceasefire agreement with Hamas is still not complete. The final details of this agreement are still being worked out. Netanyahu's statement came a few hours after the announcement of the agreement by US President Joe Biden and the Prime Minister of Qatar. Both the heads of state had given a statement about stopping the devastating war going on for 15 months in Gaza and releasing dozens of hostages.
At the same time, Netanyahu thanked Trump and Biden for the Israel-Hamas ceasefire agreement. Following the ceasefire and hostage agreement between Israel and Hamas, Prime Minister Benjamin Netanyahu joined discussions with US President-elect Donald Trump and current President Joe Biden. During the talks, Netanyahu expressed gratitude for their support in facilitating the release of the hostages. According to AFP, the Qatari Prime Minister said that the ceasefire in Gaza will begin on Sunday and 33 Israeli hostages will be released in the first phase of the ceasefire.
The United States, Egypt and Qatar have tried to mediate an end to the war that began with Hamas' attack on Israel in October 2023 last year. During months of talks, the two sides had previously said they were close to a ceasefire, but faced several last-minute hurdles.
According to AFP, the war on Gaza broke out after Hamas carried out its deadliest attack on Israel on October 7, 2023. 1,210 people died in this devastating war. Most of the people killed were civilians. Hamas also took 251 Israelis hostage during the attack, 94 of whom are still hostages in Gaza. Of these, 34 are those about whom the Israeli army says that they are dead.
In response, Israel's campaign in Gaza has killed 46,707 people, most of them civilians, according to figures from the Hamas-run territory's health ministry. The fighting has razed much of Gaza and displaced 2.3 million of the territory's pre-war population.