Life in Christ
THE EIGHTH COMMANDMENT
You shall not bear false witness against your neighbor.
It was said to the men of old, “You shall not swear falsely,
but shall perform to the Lord what you have sworn.”
The eighth commandment forbids misrepresenting the
truth in our relations with others. This moral prescription flows
from the vocation of the holy people to bear witness to their God
who is the truth and wills the truth. Offenses against the truth
express by word or deed a refusal to commit oneself to moral up
rightness: they are fundamental infidelities to God and, in this
sense, they undermine the foundations of the covenant.
The Old Testament attests that
God is the source of all truth.
His Word is truth. His Law is truth. His “faithfulness endures to
Since God is “true,” the members of his people
are called to live in the truth.
In Jesus Christ, the whole of God’s truth has been made
manifest. “Full of grace and truth,” he came as the “light of the
is the Truth.
“Whoever believes in me may not remain
The disciple of Jesus continues in his word so as
to know “the truth [that] will make you free” and that sanctifies.
To follow Jesus is to live in “the Spirit of truth,” whom the Father
sends in his name and who leads “into all the truth.”
To his dis
ciples Jesus teaches the unconditional love of truth: “Let what you
say be simply ‘Yes or No.’”
1:14; 8:12; cf. 14:6.
8:32; cf. 17:17.