There are several stories of persons who died and were raised again to life, even in the Tanakh/Old Testament. The difference with the resurrection of Jesus centers on Whom He IS, how He told many before His death that He would raise Himself in three days following His death, and what He did following His resurrection. It is written in scripture that death could not hold Him. He IS alive forever more ... as best we can tell, all the other ones raised from death of their body eventually died int heir bodies, whereas Jesus ascended and is still alive as our Priest forever, making intercession for us in the Holy of Holies.