ἄπιστος

Matthew 17:17 ἄπιστος unbelieving

“O unbelieving and perverse generation!” Jesus replied. “How long must I remain with you? How long must I put up with you? Bring the boy here to Me.”

Here: Lacking trust, in this case trust in God's power at work through Jesus. That lack is the reason the healing failed. The word can also carry the idea of being unreliable or disloyal.

Mark 9:19 ἄπιστος, unbelieving!

“O unbelieving generation!” Jesus replied. “How long must I remain with you? How long must I put up with you? Bring the boy to Me.”

Here: Lacking pistis: trust and reliance on God, shown here in the failure to rely on God's power against the spirit. This is not about rejecting a doctrine.

Luke 9:41 ἄπιστος unbelieving

“O unbelieving and perverse generation!” Jesus replied. “How long must I remain with you and put up with you? Bring your son here.”

Here: Without pistis: not trusting and relying on God, and so not loyal to him. Coming right after the disciples' failure, it points to a lack of the trust that should have let God's power work through them.

Luke 12:46 ἀπίστων unbelievers

The master of that servant will come on a day he does not expect and at an hour he does not anticipate. Then he will cut him to pieces and assign him a place with the unbelievers.

Here: The direct opposite of 'the faithful (pistos) and wise manager' in v. 42. Here it means those who proved untrustworthy with what was entrusted to them, though Luke's readers could also hear 'faithless'.

John 20:27 ἄπιστος unbelieving

Then Jesus said to Thomas, “Put your finger here and look at My hands. Reach out your hand and put it into My side. Stop doubting and believe.”

Here: "Unbelieving": one without trust or belief. This is the negative form of the word that ends the verse, and it is not a Greek word for doubt.

Acts 26:8 ἄπιστον incredible

Why would any of you consider it incredible that God raises the dead?

Here: Here it is passive, 'not to be believed, beyond belief', describing a claim and not a person. This is the only place in the New Testament where the word has this sense. Everywhere else it describes people who are 'unbelieving'.

1 Corinthians 6:6 ἀπίστων. unbelievers!

Instead, one brother goes to law against another, and this in front of unbelievers!

1 Corinthians 7:12 ἄπιστον unbelieving

To the rest I say this (I, not the Lord): If a brother has an unbelieving wife and she is willing to live with him, he must not divorce her.

1 Corinthians 7:13 ἄπιστον unbelieving

And if a woman has an unbelieving husband and he is willing to live with her, she must not divorce him.

1 Corinthians 7:14 ἄπιστος ἄπιστος unbelieving

For the unbelieving husband is sanctified through his believing wife, and the unbelieving wife is sanctified through her believing husband. Otherwise your children would be unclean, but now they are holy.

Here: Someone who has not put his trust in Christ and is outside the Christian community. In Corinth he would most likely be a practising pagan with household gods, not a modern-style skeptic.

1 Corinthians 7:15 ἄπιστος unbeliever

But if the unbeliever leaves, let him go. The believing brother or sister is not bound in such cases. God has called you to live in peace.

Here: The spouse who has not joined the community of Christ-followers. The masculine form here is generic. Verses 12–13 have already applied the case to both an unbelieving wife and an unbelieving husband.

1 Corinthians 10:27 ἀπίστων unbelieving

If an unbeliever invites you to a meal and you want to go, eat anything set before you without raising questions of conscience.

1 Corinthians 14:22 ἀπίστοις, ἀπίστοις unbelieving,, unbelieving

Tongues, then, are a sign, not for believers, but for unbelievers. Prophecy, however, is for believers, not for unbelievers.

1 Corinthians 14:23 ἄπιστοι, unbelievers,

So if the whole church comes together and everyone speaks in tongues, and some who are uninstructed or some unbelievers come in, will they not say that you are out of your minds?

1 Corinthians 14:24 ἄπιστος unbeliever

But if an unbeliever or uninstructed person comes in while everyone is prophesying, he will be convicted and called to account by all,

Here: A non-Christian, someone not trusting in Christ. In 1 Corinthians the word always means pagan neighbours, spouses or hosts (6:6; 7:12–15; 10:27). It is not a weak or doubting church member.

2 Corinthians 4:4 ἀπίστων unbelieving

The god of this age has blinded the minds of unbelievers, so they cannot see the light of the gospel of the glory of Christ, who is the image of God.

Here: In the Corinthian letters this is Paul's usual word for outsiders, people who have not put their trust in Christ (1 Cor 6:6; 7:12–15; 2 Cor 6:14–15). It describes which group someone belongs to, not a temporary mood of doubt.

2 Corinthians 6:14 ἀπίστοις· with unbelievers;

Do not be unequally yoked with unbelievers. For what partnership can righteousness have with wickedness? Or what fellowship does light have with darkness?

Here: 'With unbelievers.' In Paul's letters to Corinth this is his usual word for outsiders who do not trust in Christ, in practice the pagan population of the city (1 Cor 6:6; 7:12–15; 10:27; 2 Cor 4:4).

2 Corinthians 6:15 ἀπίστου; an unbeliever?

What harmony is there between Christ and Belial? Or what does a believer have in common with an unbeliever?

Here: An outsider who does not trust in Christ. In Paul's Corinthian letters this nearly always means a pagan non-Christian (1 Cor 6:6; 7:12–15; 10:27; 14:22–24; 2 Cor 4:4). It is a description, not an insult.

1 Timothy 5:8 ἀπίστου than an unbeliever

If anyone does not provide for his own, and especially his own household, he has denied the faith and is worse than an unbeliever.

Here: A non-Christian, an outsider to the faith. The genitive gives the comparison: "than an unbeliever". The point is that ordinary pagans already honoured the duty to support aged parents.

Titus 1:15 ἀπίστοις unbelieving

To the pure, all things are pure; but to the defiled and unbelieving, nothing is pure. Indeed, both their minds and their consciences are defiled.

Here: Without faith, not trusting the message. Their defilement is tied to their lack of faith, because in Paul's thinking cleansing comes through faith, not rule-keeping (cf. Acts 15:9).

Revelation 21:8 ἀπίστοις to [the] unbelieving

But to the cowardly and unbelieving and abominable and murderers and sexually immoral and sorcerers and idolaters and all liars, their place will be in the lake that burns with fire and sulfur. This is the second death.”

Here: "The faithless." In Revelation, "faithful" (pistos) means loyal to the point of death (2:10, 2:13). So this word means people who break faith and prove disloyal, not only people who hold the wrong opinion.