The kingdom of God (Greek: βασιλεία τοῦ θεοῦ, Basileia tou Theou; Latin: Regnum Dei ) or kingdom of Heaven (Hebrew: מלכות השמים‎, Malkuth haShamayim; Greek: Βασιλεία τῶν Ουρανῶν, Basileia tōn Ouranōn, Latin: Regnum caelorum) is a foundational concept in the Abrahamic religions: Judaism, Christianity and Islam.

The term "kingdom of God" is found in all four canonical gospels and in the Pauline epistles. The Gospel of Matthew uses the phrase "kingdom of Heaven" more often, perhaps to avoid offending Jews in the early church or perhaps simply a translation of the rabbinical expression "Malkut Shamayim". The term is also found in various writing styles such as parable, beatitude, prayer, miracle story and aphorism.

The related phrase in the Hebrew Bible, "kingdom of Jehovah," is usually rendered "kingdom of the LORD" in English translations of the Bible.Jehovah and LORD are two ways to express the Tetragrammaton.

In the synoptic Gospels, Mark and Luke use the Greek term "Basileia tou Theou", commonly translated in English as "kingdom of God." Matthew, on the other hand, employs the Greek term "Basileia tōn Ouranōn" (Βασιλεία τῶν Ουρανῶν),^[Mt 13:45] which is translated as "kingdom of Heaven" 31 times and "kingdom of God" only 6 times, with "the kingdom" with no qualifier appearing a further ten, and "in my Father's kingdom" once. Some Biblical scholars^[who?] speculate that the Matthean text adopted the Greek word for "heaven" instead of the Greek word for "God" because, unlike Mark and Luke, it was written by a Jew for a Jewish audience. It is a Jewish practice to avoid using God's name as an act of piety. In Matthew, "heaven" stands for "God."