1 John 1:4
And we write these things in order that our joy may be made complete.
John 15:11
"These things I have spoken to you in order that I may have joy in you, and that your joy may become perfect.
John 16:24
As yet you have not asked for anything in my name: ask, and you shall receive, that your hearts may be filled with gladness.
John 3:29
He who has the bride is the bridegroom; and the bridegroom's friend who stands by his side and listens to him, rejoices heartily on account of the bridegroom's happiness. Therefore this joy of mine is now complete.
2 Corinthians 1:24
Not that we want to lord it over you in respect of your faith--we do, however, desire to help your joy--for in the matter of your faith you are standing firm.
Ephesians 3:19
yes, to attain to a knowledge of the knowledge-surpassing love of Christ, so that you may be made complete in accordance with God's own standard of completeness.
Philippians 1:25-26
I am convinced of this, and I know that I shall remain, and shall go on working side by side with you all, to promote your progress and joy in the faith;
1 John 2:1
Dear children, I write thus to you in order that you may not sin. If any one sins, we have an Advocate with the Father--Jesus Christ the righteous;
2 John 1:12
I have a great deal to say to you all, but will not write it with paper and ink. Yet I hope to come to see you and speak face to face, so that your happiness may be complete.