“1 John 2:21 - I have not written unto you because ye know not the truth, but because ye know it, and that no lie is of the truth.”

The book of 1 John is one of the three Epistles of John in the New Testament. It is believed to have been written by the Apostle John in Ephesus towards the end of the first century. The purpose of this letter is to provide guidance and assurance to believers, and to combat false teachings that were prevalent at the time. The verse 1 John 2:21 is part of a larger passage where the author is addressing believers and encouraging them to remain steadfast in their faith.

The verse begins with an affirmation that the writer is not addressing the recipients of the letter because they lack knowledge of the truth. Rather, the purpose of the letter is to emphasize the truth that the readers already possess. This indicates that the letter is not introducing new concepts or teachings, but rather reinforcing what the believers already know.

The second part of the verse states, “and that no lie is of the truth.” This statement serves as a reminder that falsehood is not compatible with the truth. The writer emphasizes the need for discernment, as not everything that claims to be true aligns with the ultimate truth found in God.

In the broader context of the book of 1 John, the verse is part of the author's effort to combat false teachings and to encourage believers to remain firm in their understanding of the truth. By reminding the readers of the truth they already know and warning them against falsehood, the passage serves to strengthen the believers’ faith and protect them from deception.

One of the key themes of 1 John 2:21 is the concept of discernment. The writer urges the readers to exercise discernment in distinguishing between the truth and falsehood. This theme is relevant not only in the context of the early church but also in the lives of believers today. It serves as a reminder to critically evaluate teachings and beliefs to ensure they align with the truth found in God’s word.

Another theme present in this verse is the idea of reassurance. By affirming that the purpose of the letter is not to introduce new truths but to reinforce existing knowledge, the author seeks to provide assurance to the readers. This assurance can serve as a source of comfort and confidence for believers who may face uncertainty or doubt in their faith.

The verse also carries a message of responsibility. The readers are reminded of their role in upholding the truth and rejecting falsehood. This emphasizes the importance of actively engaging with the teachings they encounter, rather than passively accepting everything they hear. It encourages believers to take ownership of their faith and to actively seek out the truth.

Symbolically, the verse represents the idea of preserving and protecting the truth. It serves as a call to action for believers to guard against deception and to hold fast to the truth of the Gospel. The mention of “no lie” being of the truth reinforces the idea that falsehood is incompatible with the truth, and that the two must be discerned and distinguished from one another.

In conclusion, 1 John 2:21 carries an important message about the significance of discernment, reassurance, and responsibility in the context of truth and faith. The verse serves as a reminder to believers to remain steadfast in their understanding of the truth and to be vigilant in discerning falsehood. It also provides reassurance that the truth they already possess is sufficient. As such, this verse continues to offer guidance and encouragement to believers in navigating the complexities of faith and truth.