We know Jesus's kingship is true through His resurrection and His teachings in the New Testament.
The truth of Jesus's kingship is rooted in His resurrection from the dead, which confirms His authority over life and death. The New Testament presents Him as the fulfillment of Old Testament prophecies regarding the Messiah, who would establish an everlasting kingdom. His lineage from King David (Romans 1:3) and the prophetic declarations, such as those found in Zechariah 9:9 regarding the humble entry of a king into Jerusalem, reinforce His rightful claim to the throne. Moreover, Christ's teachings and the establishment of His spiritual kingdom highlight how He reigns in the hearts of believers, demonstrating His sovereignty in their lives, thus affirming His truth as King.
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