"The reason the Father loves me is that I lay down my life in order to take it up again. No one takes it from me, but I lay it down of my own accord. I have authority to lay it down and authority to take it up again. This charge I have received from My Father.” John 10:17
It was Jehovah who allowed Jesus to die and it was Jehovah who gave Jesus eternal life and raised him up from the dead. When Jesus was given eternal life, from Jehovah, he had the power to come back to life by himself through the power Jehovah sent him.
In fact, Jesus tells us readily and confesses:
"Jesus said unto her, I am the resurrection, and the life: he that believeth in me, though he were dead, yet shall he live".
He is "the resurrection" + the life. The subject here is 'the ressurection'. Who is being resurrected? Jesus. He is also the ressurection because he will be the angel who will be chosen to bring people back to life from their grave with a voice of THE Archangel. Read 1 Thessalonians 4:16.
The fleshly bodies that he materialized were not identical from one appearance to the next. Thus, even Jesus’ close friends recognized him only by what he said or did.—Luke 24:30, 31, 35; John 20:14-16; 21:6, 7.The Bible says that he sacrificed his flesh and blood “once for all time.”—Hebrews 9:11, 12.