Jesus had been sent into the world that he might destroy the works of Satan; and now, having been raised from the dead, he would ultimately "destroy him that had the power of death, that is, the devil," which destruction would guarantee the deliverance of the human race.

(Hebrews 2:14) Now Jesus had broken the bonds of death, being raised by Jehovah to power and glory, demonstrating the fact that he was fully approved by Jehovah.
He now proved that he was worthy to be praised; and without question he received the unlimited praise of all the heavenly host.

The Revelator says: "And I beheld, and I heard the voice of many angels round about the throne and the beasts and the elders: and the number of them was ten thousand times ten thousand, and thousands of thousands; saying with a loud voice, Worthy is the Lamb that was slain to receive power, and riches, and wisdom, and strength, and honor and glory, and blessing." -- Revelation 5:11,12.
SCRIPTURAL PROOF [259]It was not their previous knowledge of the Scriptures and their faith in them that Christ Jesus would arise from the dead which induced the disciples to believe that he was risen, but it was what they actually saw and experienced that led them to this conclusion.

The knowledge gained by experience, coupled with the knowledge of the Scriptures subsequently acquired by them, not only established beyond a doubt in their own minds the resurrection of the Lord Jesus, but it emboldened them to declare the message on every opportune occasion to others and to emphasize this great doctrine of truth in their epistles to the church.
[260]It will profit us here to consider the Scriptural testimony given by the Evangelist in proof that Jesus did arise from the dead three days after his crucifixion.

There have always been some that denied the resurrection and hence it is always well to fortify ourselves against such denial, as well as to strengthen our own faith.