Here are many Bible verses about joy.

May the God of hope fill you with all joy and peace in believing, so that by the power of the Holy Spirit you may abound in hope.- Romans 15:13

Rejoice in the Lord always; again I will say, Rejoice.- Philippians 4:4

But the fruit of the Spirit is love, joy, peace, patience, kindness, goodness, faithfulness,- Galatians 5:22

You make known to me the path of life; in your presence there is fullness of joy; at your right hand are pleasures forevermore.- Psalm 16:11

A joyful heart is good medicine, but a crushed spirit dries up the bones.- Proverbs 17:22

For the kingdom of God is not a matter of eating and drinking but of righteousness and peace and joy in the Holy Spirit.- Romans 14:17

These things I have spoken to you, that my joy may be in you, and that your joy may be full.- John 15:11

This is the day that the Lord has made; let us rejoice and be glad in it.- Psalm 118:24

Just so, I tell you, there is joy before the angels of God over one sinner who repents.”- Luke 15:10

Rejoice with those who rejoice, weep with those who weep.- Romans 12:15

The Lord your God is in your midst, a mighty one who will save; he will rejoice over you with gladness; he will quiet you by his love; he will exult over you with loud singing.- Zephaniah 3:17

But rejoice insofar as you share Christ’s sufferings, that you may also rejoice and be glad when his glory is revealed.- 1 Peter 4:13

Rejoice always, pray without ceasing, give thanks in all circumstances; for this is the will of God in Christ Jesus for you.- 1 Thessalonians 5:16-18

May you be strengthened with all power, according to his glorious might, for all endurance and patience with joy,- Colossians 1:11