Did Jesus come back to life in spirit form?

By raising Christ from the dead, God confirmed His authentic plan for victory over death.

...he hath given assurance unto all men, in that he hath raised him from the dead. Acts 17:31

Jesus' resurrected body is a glorious, spiritual body, superior to our limited bodies.

It is sown a natural body; it is raised a spiritual body... I Corinthians 15:44