While waiting in the gate area of Singapore’s Changi Airport to board my flight, I noticed a young family—mom, dad, and son. The area was crowded, and they were looking for a place to sit. Suddenly, the little boy began loudly singing “Joy to the World.” He was about 6 years old, so I was pretty impressed that he knew all the words.

What captured my attention even more was the look on the boy’s face—his beaming smile matched the words he was singing as he proclaimed to everyone at the gate the joy of the Christ who has come.

This joy is not limited to exuberant children nor should it be confined to the Christmas season. The overflowing joy of knowing Christ’s presence in our lives was one of the themes of Jesus’ final teaching with His disciples the night before He died on the cross. He told them of His extravagant love for them—that He loved them as the Father loved Him (John 15:9). After sharing what this eternal relationship looks like, Jesus said, “These things I have spoken to you, that My joy may remain in you, and that your joy may be full” (v.11).

What a promise! Through Jesus Christ our hearts can be filled with joy—real joy!