Mark 4:21 in the King James Version of the Bible reads, "And he said unto them, Is a candle brought to be put under a bushel, or under a bed? and not to be set on a candlestick?"

This verse is part of a larger parable that Jesus tells his disciples, known as the Parable of the Lamp or the Parable of the Candle (Luke 8:16-18). In this parable, Jesus uses the image of a lamp to teach a spiritual lesson to his followers. The lamp represents the truth of God's word, and the act of lighting the lamp symbolizes the spreading of that truth to others.

The lamp is a common symbol in the Bible, often representing guidance, wisdom, and the presence of God. In the Book of Psalms, King David writes, "Thy word is a lamp unto my feet, and a light unto my path" (Psalm 119:105), emphasizing the idea that God's word provides direction and illumination in our lives.

In the specific verse of Mark 4:21, Jesus asks his disciples a rhetorical question about the purpose of a candle. He is essentially asking them why someone would light a candle and then hide it away where it cannot fulfill its intended purpose of providing light. This question serves as a metaphor for the disciples' responsibility to share the teachings of Jesus with others rather than keeping them hidden.

The parable of the lamp is a call to action for believers to openly and boldly share the truth of the gospel with others. This is consistent with Jesus' command in Matthew 5:14-16, where he tells his followers, "You are the light of the world. A city that is set on a hill cannot be hidden... Let your light so shine before men, that they may see your good works, and glorify your Father which is in heaven." This further emphasizes the idea that the truth of God's word should not be hidden but rather proclaimed for all to see.

Additionally, the parable of the lamp highlights the importance of faithfulness and accountability. Just as a lamp cannot fulfill its purpose if it is hidden, believers are called to live authentic and transparent lives that reflect the light of Christ. This means consistently living in a way that aligns with the teachings of Jesus and being a positive example to those around us.

The context of Mark 4:21 is significant in understanding its message. In the larger passage, Jesus is teaching a series of parables about the kingdom of God. These parables use everyday objects and situations to convey deep spiritual truths. The parable of the lamp serves as a reminder to the disciples of their responsibility to share the message of the gospel with others and to live in a way that reflects the light of Christ.

Overall, the verse Mark 4:21 in the King James Version of the Bible conveys a powerful message about the importance of boldly and openly sharing the truth of God's word with others. It serves as a reminder for believers to live faithfully and authentically, allowing the light of Christ to shine through their actions and words. This passage challenges us to consider how we are using the light of God's truth in our lives and encourages us to be intentional in sharing that light with others.