John 15:11 "These things I have spoken to you, that My joy may remain in you, and that your joy may be full."
What were the things that our Lord Jesus spoke to them earlier that will make them to be joyful and that their joy will remain in them.
John 13:5 "After that, He poured water into a basin and began to wash the disciples' feet, and to wipe them with the towel with which He was girded."
After they saw our Lord Jesus ascending back to heaven, they will never forget that the Messiah, the Almighty God had washed their feet. Oh, what great honour and love He had shown to them just ordinary folks and fishermen. Our Lord Jesus will fill us with similar joy once we have also tried given up all and follow Him.
Mat 19:27 Then Peter answered and said to Him, "See, we have left all and followed You.Therefore what shall we have?"
John 13:19 "Now I tell you before it comes, that when it does come to pass, you may believe that I am He."
Our Lord kept telling us the things to come so that when they are fulfilled, we will believe Him as the Messiah, and also in His words for we will be filled with joy. Brethren, do not hesitate to teach end time signs and events in accordance to the chronological order.
John 14:29 "And now I have told you before it comes, that when it does come to pass, you may believe."
John 14:2 "In My Father's house are many mansions; if it were not so, I would have told you. I go to prepare a place for you. And if I go and prepare a place for you, I will come again and receive you to Myself; that where I am, there you may be also."
Very often, we hear testimonies of brethren seeing our Lord coming to take them back to heaven just before their death. This fulfillment of His promise is so joyful for our beloved Lamb of God, Himself will escort His disciples to heaven.
John 14:15-17a,26 "If you love Me, keep My commandments. And I will pray the Father, and He will give you another Helper, that He may abide with you forever— the Spirit of truth... But the Helper, the Holy Spirit, whom the Father will send in My name, He will teach you all things, and bring to your remembrance all things that I said to you."
When we love our Lord by keeping His commandments, He will give (baptize) us with the Spirit of truth, Who will teach us everything. How joyful it will be when we finally understand our Lord, His will, words and great wisdom.
John 14:27 "Peace I leave with you, My peace I give to you; not as the world gives do I give to you. Let not your heart be troubled, neither let it be afraid."
Whenever there is worry, sorrow or problem, our Lord's peace will delight us and fills us with His joy.
John 15:7 "If you abide in Me, and My words abide in you, you will ask what you desire, and it shall be done for you."
If we abide in Him, our Lord will grant our hearts' desires to gladden us especially during the time of difficulties, persecutions, trials, etc.
Brethren, the joy of the Lord is our strength to overcome faithlessness, sufferings, sicknesses, sorrows, persecutions, despairs, temptations, and the wicked things of this world.
Warning: Deu 28:47-48 "Because you did not serve the Lord your God with joy and gladness of heart, for the abundance of everything, therefore you shall serve your enemies, whom the Lord will send against you, in hunger, in thirst, in nakedness, and in need of everything; and He will put a yoke of iron on your neck until He has destroyed you."