Sin of Fear & Unbelief: One Eternal Damning Sickness

The Complete Word Study Dictionary: New Testament 571. ἄπιστος ápistos

571. ἄπιστος ápistos; gen. apístou, masc.–fem., neut. ápiston, adj. from a (1), without, and pistós (4103), believing, faithful. Not worthy of confidence, untrustworthy. In the NT in a pass. sense, a thing not to be believed, incredible (Acts 26:8); in an act. sense, not believing (Matt. 17:17; Mark 9:19; Luke 9:41; 12:46; John 20:27). Denotes one who disbelieves the gospel of Christ, an unbeliever, infidel (1 Cor. 6:6; 7:12–15; 10:27; 14:22–24; 2 Cor. 4:4; 6:14, 15; 1 Tim. 5:8; Titus 1:15; Rev. 21:8; Sept.: Is. 17:10).

Revelation 21:8 ASV

But for the fearful, and unbelieving, and abominable, and murderers, and fornicators, and sorcerers, and idolaters, and all liars, their part shall be in the lake that burneth with fire and brimstone; which is the second death.

2 Corinthians 4:4 ASV

in whom the god of this world hath blinded the minds of the unbelieving, that the light of the gospel of the glory of Christ, who is the image of God, should not dawn upon them.

Titus 1:15 ASV

To the pure all things are pure: but to them that are defiled and unbelieving nothing is pure; but both their mind and their conscience are defiled.

2 Corinthians 6:14 ASV

Be not unequally yoked with unbelievers: for what fellowship have righteousness and iniquity? or what communion hath light with darkness?

2 Corinthians 6:15 ASV

And what concord hath Christ with Belial? or what portion hath a believer with an unbeliever?

571. ἄπιστος ápistos; gen . apístou, masc.–fem., neut. ápiston, adj . from a (1), without, and pistós (4103), believing, faithful. Not worthy of confidence, untrustworthy. In the NT in a pass. sense, a thing not to be believed, incredible (Acts 26:8); in an act. sense, not believing (Matt. 17:17; Mark 9:19; Luke 9:41; 12:46; John 20:27). Denotes one who disbelieves the gospel of Christ, an unbeliever, infidel (1 Cor. 6:6; 7:12–15; 10:27; 14:22–24; 2 Cor. 4:4; 6:14, 15; 1 Tim. 5:8; Titus 1:15; Rev. 21:8; Sept .: Is. 17:10). Note that this not two groups [scardy cats + unbelieving; but those who have the two spiritual diseases.] They are also abominable! And grouped as guiltily with the other six groups of condemned.

Unbelievers are called by Jesus as darkness and sons of Belial [wickedness] personified!

The 10 spies bringing back the evil report to Joshua were of this sort: and spread their contagion to all the children of Israel.

1 Zodhiates, S. (2000) The complete word study dictionary: New Testament. electronic ed. Chattanooga, TN: AMG Publishers.