All who trust in Jesus as the Son of God (1 Jn 4:7-21), Savior and Lord are filled with joy the world doesn’t know. Joy comes from God, Father, Son and Holy Spirit.
Filled with joy from God our Father
We give thanks to God the Father of our Lord Jesus Christ, praying always for you, having heard of your faith in Christ Jesus, and of the love which ye have toward all the saints, because of the hope which is laid up for you in the heavens, whereof ye heard before in the word of the truth of the gospel, which is come unto you; even as it is also in all the world bearing fruit and increasing, as it doth in you also, since the day ye heard and knew the grace of God in truth; even as ye learned of Epaphras our beloved fellow-servant, who is a faithful minister of Christ on our behalf, who also declared unto us your love in the Spirit.
For this cause we also, since the day we heard it, do not cease to pray and make request for you, that ye may be filled with the knowledge of his will in all spiritual wisdom and understanding, to walk worthily of the Lord unto all pleasing, bearing fruit in every good work, and increasing in the knowledge of God; strengthened with all power, according to the might of his glory, unto all patience and longsuffering with joy; giving thanks unto the Father, who made us meet to be partakers of the inheritance of the saints in light. Colossians 1:3-12
Now the God of hope fill you with all joy and peace in believing, that ye may abound in hope, in the power of the Holy Spirit. filled with joy. Romans 15:13
Filled with joy from our Lord and Savior Jesus Christ
But now I come to thee; and these things I speak in the world, that they may have my joy made full in themselves. I have given them thy word; and the world hated them, because they are not of the world, even as I am not of the world. I pray not that thou shouldest take them from the world, but that thou shouldest keep them from the evil one . They are not of the world even as I am not of the world. Sanctify them in the truth: thy word is truth. As thou didst send me into the world, even so sent I them into the world. And for their sakes I sanctify myself, that they themselves also may be sanctified in truth.
Neither for these only do I pray, but for them also that believe on me through their word; that they may all be one; even as thou, Father, art in me, and I in thee, that they also may be in us: that the world may believe that thou didst send me.
And the glory which thou hast given me I have given unto them; that they may be one, even as we are one; I in them, and thou in me, that they may be perfected into one; that the world may know that thou didst send me, and lovedst them, even as thou lovedst me. Father, I desire that they also whom thou hast given me be with me where I am, that they may behold my glory, which thou hast given me: for thou lovedst me before the foundation of the world.
O righteous Father, the world knew thee not, but I knew thee; and these knew that thou didst send me; and I made known unto them thy name, and will make it known; that the love wherewith thou lovedst me may be in them, and I in them. John 17:13-25
Filled with joy of the Holy Spirit
We give thanks to God always for you all, making mention of you in our prayers; remembering without ceasing your work of faith and labor of love and patience of hope in our Lord Jesus Christ, before our God and Father; knowing, brethren beloved of God, your election, how that our gospel came not unto you in word only, but also in power, and in the Holy Spirit, and in much assurance; even as ye know what manner of men we showed ourselves toward you for your sake. And ye became imitators of us, and of the Lord, having received the word in much affliction, with joy of the Holy Spirit; so that ye became an ensample to all that believe in Macedonia and in Achaia. 1 Thessalonians 1:2-7
The joy of our salvation
Blessed be the God and Father of our Lord Jesus Christ, who according to his great mercy begat us again unto a living hope by the resurrection of Jesus Christ from the dead, unto an inheritance incorruptible, and undefiled, and that fadeth not away, reserved in heaven for you, who by the power of God are guarded through faith unto a salvation ready to be revealed in the last time. Wherein ye greatly rejoice, though now for a little while, if need be, ye have been put to grief in manifold trials, that the proof of your faith, being more precious than gold that perisheth though it is proved by fire, may be found unto praise and glory and honor at the revelation of Jesus Christ: whom not having seen ye love; on whom, though now ye see him not, yet believing, ye rejoice greatly with joy unspeakable and full of glory: receiving the end of your faith, even the salvation of your souls. 1 Peter 1:3-9
All scripture from ASV