ἄπταιστος
not stumbling, i.e. (figuratively) without sin
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not stumbling, i.e. (figuratively) without sin
ἄπταιστος(áptaistos)
Strong’s Definition
not stumbling, i.e. (figuratively) without sin
from G1 (Α) (as a negative particle) and a derivative of G4417 (πταίω);
“Now unto him that is able to keep you from falling, and to present you faultless before the presence of his glory with exceeding joy,”
No verses found containing this word study ID.
Walking Without Wavering: The Path of the Unstumbling Heart
Only once in all of Holy Scripture does this singular word appear — áptaistos, a single, solitary jewel set into the fabric of revelation. It means one who does not stumble, one whose foot finds sure ground even on the narrow ridge above the abyss. The word itself is a negation, born from the Greek alpha-privative and the verb ptaíō, meaning to trip, to falter, to strike one's foot against stone. In the entire New Testament, you will find this word but one time, in the letter of Jude, verse 24, where it speaks of the One who is able to keep you from stumbling and to present you blameless before the presence of His glory with exceeding joy. It is a word that describes not your own effort, but the work of Another who holds your hand upon the path.
The Root Beneath the Foot
To understand áptaistos, you must first feel the terror of its opposite. The Greek world knew well what it meant to stumble — the word ptaíō carried the image of a traveler whose foot caught on a hidden root, who pitched forward into the mud, who fell before reaching the destination. The classical poets used it for warriors who tripped in battle, for runners who lost the race at the final stride, for souls whose plans collapsed in ruin. But the biblical writers transformed this physical image into something far more weighty. When the Septuagint translators rendered the Hebrew Scriptures into Greek, they chose ptaíō to carry the burden of spiritual failure — the stumbling of the soul against the commandments, the tripping of the heart into sin. In Proverbs 24:16, the righteous man falls seven times and rises again, but the wicked stumble into calamity. The difference is not in the falling, but in the rising — and in the One who raises.
The Bridge Between Two Worlds
The Septuagint, that ancient Greek translation of the Hebrew Scriptures, reveals something profound about this word. When the translators encountered the Hebrew kashal — to stumble, to totter, to fall — they often rendered it with ptaíō. In Isaiah 8:14, the Lord Himself becomes a stone of stumbling and a rock of offense. Yet here, in Jude's letter, we find the negation of that very word: áptaistos. The stone that causes stumbling becomes the foundation that prevents it. The rabbis of old observed that the path of righteousness is narrow as a hair, while the path of wickedness is wide as a river. But they also taught that the Holy One, blessed be He, does not give a commandment without providing the strength to keep it. What the Law could not do — make a man entirely unstumbling — the grace of Messiah accomplishes. The apostolic tradition teaches that this is not perfectionism but preservation; not that you never trip, but that you are kept from final fall.
The One Who Keeps
The single occurrence of áptaistos in Jude 24 is not a command but a promise: "Now to Him who is able to keep you from stumbling." The emphasis falls entirely upon the Keeper, not upon the kept. In the Greek philosophical tradition, the Stoics spoke of the wise man who never stumbles through perfect self-mastery — a noble ideal that no mortal ever achieved. But the apostolic faith turns this on its head. You do not achieve the unstumbling life; you receive it. You are not the athlete who never falters; you are the child whose Father holds his hand. The early church understood this as the difference between pagan striving and Christian resting. Clement of Rome wrote of those who are kept blameless not by their own vigilance but by the Shepherd's watchfulness. The word áptaistos does not describe your strength but your security.
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The Heavy Weight of a Single Word
Why did Jude choose this rare word when he could have used others? The Greek language offered many alternatives: anamártētos meant sinless; ákakos meant innocent; ámōmos meant blameless. But Jude chose a word that carries the image of walking, of movement, of pilgrimage. You are not called to be a statue — perfect but motionless. You are called to walk, to run, to journey, and to never stumble. Jewish tradition holds that life itself is a path, and every step is a choice. The word áptaistos preserves the dynamic nature of faithfulness. It is not that you have arrived; it is that you are being kept along the way. The psalmist wrote in Psalm 37:23, "The steps of a good man are ordered by the Lord, and He delights in his way." The Greek word in the Septuagint for "ordered" carries the sense of being established, made firm. The same God who orders your steps is the One who keeps you from stumbling over them.
The Messiah Who Never Fell
Yeshua is not merely the teacher of the unstumbling life; He is its embodiment. In His earthly walk, He never once struck His foot against the stone of disobedience. He was áptaistos in the fullest sense — not because the path was smooth, but because His communion with the Father was unbroken. The tempter came in the wilderness and quoted Scripture, but Yeshua did not stumble. The Pharisees laid traps with their questions, but He walked through them unharmed. The weight of the cross pressed upon His shoulders, yet He did not falter in His obedience. The author of Hebrews writes that He was tempted in all points as we are, yet without sin — a perfect translation of áptaistos into the grammar of a human life. And because He walked without stumbling, He can now keep you from stumbling. His perfection becomes your preservation. As the apostolic tradition teaches, He does not merely show you the path; He becomes the path, and He walks it with you.
The Glory of the Presentation
Jude's full verse speaks not only of being kept from stumbling but of being presented blameless before the presence of His glory with exceeding joy. The image is that of a bride being led to her groom, her garments unstained, her steps steady. In the ancient wedding customs of Israel, the bride would walk the final steps to the wedding canopy with her father holding her arm, ensuring she did not trip before the eyes of all. This is the picture of your salvation. You are not walking alone. The Father Himself holds you, and the day is coming when He will present you to His Son, and you will stand — áptaistos — without a single stumble in your history. The early church understood this as the ultimate hope: not that you never fell, but that you never fell finally. Not that your path was smooth, but that your arrival was certain.
Your Feet on the Narrow Way
And so, beloved, hear the charge of this ancient word. You walk today on a path strewn with stones — the stone of temptation, the stone of doubt, the stone of weariness, the stone of fear. Your own feet are weak, your own balance uncertain. But the Keeper of Israel neither slumbers nor sleeps. He has not given you a commandment without giving you Himself. When you feel your foot begin to slip, when the gravel shifts beneath you, when the darkness makes the path invisible — look to the One who is able. He does not promise that you will never stumble; He promises that you will not fall. He does not promise that the stones will be removed; He promises that you will be kept. So walk, child of the covenant. Walk without fear. Walk without looking back. Your steps are ordered, your path is known, and the One who began this good work in you will carry it to completion. You are not falling — you are being kept. And on that final day, when you stand before the throne, you will know that every step was held by the hand that was pierced for you. Walk on. Walk unstumbling. Walk into glory.