In the New Testament, Kyrios (Κύριος) is often translated as Lord. The root word means “master, one with authority,” but in the biblical culture, it carries theological weight: when we encounter the Gospel, we see Jesus honored with the same title that Jewish believers use when pronouncing the holy name YHWH in the Old Testament Greek (the Septuagint uses Kyrios in place of the tetragrammaton in many instances). This does not mean we can simply infer a “formula” outside the Church, but it helps to see the continuity between the promises of the Old Testament and the revelation in Christ.
Kyrios with the God of Israel
In the Psalms and the prophets, “Lord” is the covenant, saving, and just judge. When the apostles confess “Jesus is Lord” (see Rom 10:9; 1 Cor 12:3), they place their faith in a real person in history — while affirming that He stands among the holy names revered by the Hebrew Scriptures. This is why the Greek vocabulary is not just a matter of linguistics: it connects the reverence for the holy name with faith in Christ.
Do not misuse “Greek words”
Some online rhetoric isolates a word to deny doctrines that the Church has contemplated. The Catholic approach prioritizes the whole context of Scripture, Liturgy, and Doctrine. Kyrios helps illuminate — not replace — approved Vietnamese translations and reputable commentaries. When consulting a dictionary, pay attention to the context: the same word can refer to God the Father or a master in a social sense, depending on the sentence.
In the life of believers
Calling Jesus Kyrios means acknowledging Him as the master of life, not just a moral example. This permeates the Hail Mary, the Glory Be, and silence before the Eucharist. Learning from Kyrios encourages us to approach the Gospel with an attitude of trust and communion in the parish, avoiding the tendency to “self-interpret Scripture” apart from the Mystery proclaimed by the Church.
In summary
- Kyrios connects the Old Testament (holy name) with the confession of Christ.
- Always approach according to context and Magisterium, not isolating a root word.
- Application to life: recognize the Lord as the master of love and action.
When debating the title
Among Christian traditions, there are differences in how to read and pray the holy name; Catholics should refer to doctrine and diocesan guidance, engaging in humble dialogue. The study of words opens the way to understanding — not a weapon to win arguments. If a sermon relies solely on “the Greek says this” while ignoring the entirety of Scripture and the teachings of the Church, we need to be cautious and seek more responsible sources.


