Five-minute study · Day 104 · Matthew 5
Matthew 5:48
A word worth stopping on: perfect τέλειος teleios
This verse has crushed people. 'Be ye therefore perfect, even as your Father which is in heaven is perfect.' Read as a demand for moral flawlessness, it sets a standard no human being can reach. Preachers have built entire theologies of despair on this sentence. The Greek word behind 'perfect' opens a different door. Jesus was a Galilean rabbi addressing Jewish peasants on a hillside. He used a word that would have reminded them of the temple, the harvest, and the animals brought for sacrifice.
Word study: perfect
- Greek
- τέλειος
- Pronounced
- teleios
- Strong's
- G5046
- Definition
- Having reached its end or goal, complete, mature, fully developed. From telos, an end or purpose.
Teleios comes from telos, meaning end, goal, completion. A teleios fruit is ripe. A teleios animal is fully grown, without blemish, suitable for sacrifice. A teleios person has reached maturity, the full measure of what they were meant to become.
The word carried specific resonance in the sacrificial system. Leviticus 22:21 required that any animal brought to the altar be tamim, whole, without defect. The Septuagint translates tamim as teleios in several passages. When Jesus says 'be teleios as your Father is teleios,' the temple congregation would hear an echo of the sacrifice requirement: be whole, be complete, be undivided in your devotion.
The context confirms this reading. Matthew 5:43-47 describes people who love only those who love them back, who greet only their own circle. Jesus calls that partial. Tax collectors do the same. The teleios life loves without dividing people into categories of worthy and unworthy. It is whole because it holds nothing back.
Paul uses teleios in 1 Corinthians 14:20 for mature thinking. Hebrews 5:14 uses it for those who have trained their senses through practice. James 1:4 says 'let patience have her perfect (teleios) work, that ye may be perfect (teleios) and entire, wanting nothing.' In every case, teleios describes completion of purpose. A life that has reached what it was designed for.
Historical context · Late 20s AD
Perfection on a Hillside
The Sermon on the Mount was delivered to a crowd that included Galilean farmers, fishermen, tradespeople, and religious seekers. Matthew 5:1 places Jesus on a mountainside near the Sea of Galilee, likely one of the hills above Capernaum. The audience was predominantly Jewish, steeped in Torah, familiar with the sacrificial system, and living under Roman occupation.
The concept of being tamim (whole, blameless) before God runs throughout the Hebrew Bible. God told Abraham, 'walk before me, and be thou perfect (tamim)' (Genesis 17:1). The Psalms repeatedly use tamim for those who walk in integrity: 'Blessed are the undefiled (tamim) in the way' (Psalm 119:1). Noah was called 'a just man and perfect (tamim) in his generations' (Genesis 6:9).
Greek philosophical tradition also used teleios. Aristotle defined the teleios as something that has attained its purpose (Metaphysics 5.16). A teleios physician practiced medicine at the full extent of the art. The Stoics spoke of the teleios sophos, the perfect sage who had achieved complete virtue. Jesus' audience lived in a bilingual world where both the Hebrew tamim and the Greek teleios carried weight. The command to be teleios as God is teleios was a call to wholeness, to living with undivided purpose, directed by the same generous love Jesus had just described: rain falling on the just and the unjust alike.
For reflection
Teleios means having reached your purpose, fully developed, whole. That reframes the question. The issue is not 'Are you morally flawless?' The issue is 'Are you becoming what you were designed to be?' Where in your life right now do you sense unfinished growth?
A teleios animal was whole, holding nothing back from the altar. Jesus just described love that holds nothing back from anyone. Wholeness and generosity are the same thing in this passage.
Sources: BDAG Lexicon; Carson, 'Matthew' (EBC); Aristotle, 'Metaphysics' 5.16