The Hebrew noun malkuth (מַלְכוּת) means kingdom, reign, royal power, or sovereignty. It derives from the root malak (to reign, to be king) and appears over 90 times in the Old Testament. It describes both earthly kingdoms and the transcendent reign of God himself.
Malkuth reaches its theological apex in Daniel, where the eternal kingdom of God supersedes all earthly empires. The stone cut without hands that destroys the statue in Nebuchadnezzar's dream represents the malkuth of God that will never be destroyed (Daniel 2:44). This word forms the Old Testament foundation for the New Testament proclamation of the basileia (kingdom) of God — the central theme of Jesus' teaching. God's malkuth is not primarily territorial but relational: wherever God reigns as King over willing hearts, the kingdom has come.