Yes Jesus is the Sovereign God, not God the Father, but God the Son in the Triune Godhead. Jesus considered Himself equal with God but because He emptied Himself of His independent attributes, His equality with God was not something to be grasped. He did this for us to die on the cross for the sins of the world. As God the Father is Alpha and Omega being uncreated, so is God the Son. The one who died is God, not the Father, but the Son. "And when I saw him, I fell at his feet as dead. And he laid his right hand upon me, saying unto me, Fear not; I am the first and the last: I [am] he that liveth, and was dead; and, behold, I am alive for evermore, Amen; and have the keys of death and hades" (Rev. 1.17,18).