Psalm 68:3

At least five times the Bible tells the people of God to rejoice in the Lord. We may not always be able to rejoice in other people, or in our circumstances.We can becp,e frustrated. We can be immature. We can
be undependable. Need I go on? But the Lord is different! God is dependable. God is faithful. God is honest. God is good. God is patient. God is kind. God is understanding. God is merciful and gracious.  When we focus on our circumstances, or on what people do, we can lose our joy quickly. But with a true understanding of what God is really like, we cannot help but rejoice because of His goodness and greatness.
If you are not sure what God is really like, then look at Jesus Christ in the pages of the Four Gospels in the New Testament. Jesus Christ perfectly revealed to us what God is like.

 But let the righteous be glad; Let them rejoice before God; Yes, let them rejoice exceedingly. (Psalm 68:3).