John 16:4 (KJV): "But these things have I told you, that when the time shall come, ye may remember that I told you of them. And these things I said not unto you at the beginning, because I was with you."

This verse is part of a longer discourse by Jesus to his disciples, often referred to as the Farewell Discourse. In this discourse, Jesus is preparing his disciples for his impending departure and the coming of the Holy Spirit. The verse in question comes just before Jesus predicts the persecution the disciples will face, but encourages them to take heart because he has overcome the world (John 16:33).

In John 16:4, Jesus is explaining the purpose behind his previous teachings. He tells the disciples that he has told them these things so that when the time comes, they may remember his words. This emphasizes the idea of preparation and forewarning, as well as the importance of Jesus's teachings in forming the disciples' understanding and response to the events that will unfold.

The context of this verse is key to understanding its meaning. Jesus has been teaching his disciples about the nature of his mission, his impending death and resurrection, and the coming of the Holy Spirit. He has also been preparing them for the persecution and hardships they will face as his followers. Throughout the Farewell Discourse, Jesus reminds the disciples of the importance of abiding in him and keeping his commandments, as well as the promise of the coming of the Holy Spirit to guide and empower them.

The verse also reflects the theme of remembrance and understanding in the midst of trials. Jesus is assuring the disciples that his teachings are meant to prepare them for the challenges they will face, and that they will find strength and guidance in remembering and applying his words. This theme of remembrance is seen throughout the Gospel of John, as Jesus frequently speaks of the importance of remembering his words and his works (John 14:26, John 15:20).

Symbolically, this verse can be seen as a foreshadowing of the disciples' need to remember and hold onto Jesus's teachings in the face of opposition and persecution. It also emphasizes the role of the disciples as witnesses to Jesus's life, death, and resurrection, and the importance of their testimony in the early church.

In a broader theological sense, this verse speaks to the ongoing significance of Jesus's teachings for believers. It highlights the importance of scripture and the words of Jesus as a source of guidance, comfort, and strength in times of trial. It also points to the faithfulness of Jesus in preparing his followers for the challenges they will face and in providing them with what they need to endure and overcome.

Overall, John 16:4 is a poignant reminder of the disciples' need to remember and hold onto Jesus's teachings in the face of adversity, and a reassurance of the enduring significance of his words for believers. It serves as a source of encouragement and hope for Christians facing difficulties, and a reminder of the abiding presence and guidance of Jesus through his teachings and the Holy Spirit.