Philippians 2:18
And you should be glad and share your joy with me also.
Ephesians 3:13
So, I am asking you people not to become discouraged over my sufferings on your behalf, for they are for your benefit [eventually].
Philippians 3:1
Finally, my brothers, rejoice in [your relationship to] the Lord. It does not trouble me to write the same things to you again, because you will be safer if I do. [Note: These "same things" may refer to warnings against false teachers which Paul had either spoken to them or written about previously].
Philippians 4:4
Rejoice in [fellowship with] the Lord all the time. I will say it again: Rejoice!
James 1:2-4
Consider it [an occasion for] much joy, my brothers, when you experience various trials,