Great reason for rejoicing.

"Do not rejoice because the spirits are subject to you, but rejoice because your names are written in heaven.”  (Luke 10: 20).

The 72 disciples of Jesus on their return from their missionary journey were full of joy because they cast out demons in the name of Jesus.  Jesus tells them that there is a greater joy waiting for them.  Their "names are written in heaven.”  (Luke 10: 20).  Your name too is written in heaven and this is a matter for great joy.  The Christian has the Holy Spirit, who is the source of joy.  Jesus Himself rejoiced constantly in the Holy Spirit.
"At that very moment he [Jesus] rejoiced in the holy Spirit."  (Luke 10: 21).

At the time of Job [Book of Job], people rejoiced in their material possessions.
"Thus the LORD blessed the latter days of Job more than his earlier ones. For he had fourteen thousand sheep, six thousand camels, a thousand yoke of oxen, and a thousand she-assess. And he had seven sons and three daughters."  (Job 42: 12 - 13).

Revelation was progressive.  Jesus was not yet born to reveal the Holy Spirit, the Blessed Trinity and Heaven.
Now we know the source of true and everlasting peace and joy.

"Blessed are you, Father, Lord of heaven and earth, you have revealed to little ones the mysteries of the Kingdom."  (Cf Matthew 11: 25).

To get hold of this peace and joy, we need the awesome Holy Spirit:
"Teach me wisdom and knowledge, for in your commands I trust."   (Psalm 119: 66).

“Keep on asking, and you will receive what you ask for. Keep on seeking, and you will find. Keep on knocking, and the door will be opened to you."  (Matthew 7: 7 NLT).

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