Among Israel’s Jewish society, which constitutes about 85% of the county’s voter base (about 15% are Arab voters), voters’ level of religiousness is considered, in relevant fields of research, the strongest predictor of voting behavior as well as of a wide range of political attitudes. Most prominent is the very high correlation found between a high level of religiousness and hawkish right-wing political positions, and vice versa: a secular self-definition is a very good predictor of dovish left-wing approaches. A vast majority of voters defining themselves as religious support the Likud and right-wing parties belonging to the Likud’s bloc. Conversely, a large (if not decisive) majority of voters defining themselves as secular vote for central and left-wing parties. In the 21st Knesset elections that took place in April 2019 it became clear that the bloc consisting of the Likud, further right-wing parties, and religious parties, have a significant structural advantage over the central-leftist bloc. The rightist bloc won 65 mandates compared with 55 for the center-left bloc (the Knesset—the Israeli parliament, has 120 seats), despite the fact that the rightist bloc lost at least five potential seats due to religious voters who supported extreme rightist parties that failed to pass the electoral threshold.