Israel gives you a temporary citizenship for first 2-3 years. You recive a passport with a different colour for this time.
If you spend 270+ days per year in a first 2 or 3 years, you are granted a full citizenship and a new oassport with a standard colour.
During temporary citizenship has a person to become integrated into the society. You have to study a language, culture, ...
You are under review all the time. Yoi have your own "mentor" who is responsible for your integration into society. There is bo way how to obtain︀ israeli citizenship and do not live there afterwords.
If you do not spend enough time︁ in Israel, or if you are not integrated into society, or if you commit a︂ crime or even any serious civil delict, citizenship is revoked and you have to leave︃ Israel.