Fr. Eamon Tobin says the eighth commandment calls us to live in the truth that God has revealed to us in Jesus and to communicate truthfully with others. Truthfulness makes you a person of integrity, one who can be trusted. Honesty is the key to healthy relationships. The eighth commandment forbids all forms of lying. Lying is the most direct offense against the truth.
Msgr. Charles Pope points out that this commandment proclaims the splendor and beauty of the truth and how precious and essential a foundation it is for our lives. Jesus described it as the fundamental purpose of his saving mission: “For this I was born and for this I have come into the world to bear witness to the truth. (John 18:37) He also taught, if you remain in my word, you will truly be my disciples and you will know the truth and the truth will set you free. (John 8:31)
The catechism teaches that we must be not only dedicated to the truth but we are to witness to it by word and deed. Jesus promised to send his disciples the spirit of truth which will lead his followers into the truth he had revealed to them. (John. 16:12-16) We are blessed that the Holy Spirit has empowered the Church to be the protector and teacher of God’s truth to every generation.
Christ said “I am the way, the truth and the life.” (John. 14:6) He advises “let your yes be yes and your no be no.” Truth is in the person named Jesus Christ. We need to know him and believe what He teaches about truth. Then we need to act accordingly.
Here is some holy homework for you suggested by Fr. Tobin. This week pay special attention to your conversation with others. To what extent are you truthful in what you say?
Be attentive to the opportunities you may get to share the truth of the Gospel with others.