What are some different ways the Bible describes Apostasy?

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Departure/Turning aside/Turning back (I Tim 4:1, Psa 125:5)

Defilement (Tit 1:15)

Denying Christ (2 Tim 2:12, 2 Pet 2:1)

Lies/Deception (I Tim 4:2)

False Words/Speeches/Teaching (2 Pet 2:1, 20)

Hypocrisy/Hypocrites (Job 27:8)

Gall/Root of Bitterness (Deut 29:18)

Sin (Heb 10:26)

Sin-against/Wrongeth/Troubleth/Despiseth own Soul/Body (I Cor 6:18, Proverbs)

Reprobate (2 Tim 3:8)

Hating Brethren (I John 2:9-11)

Oppressing Poor/Widow/Fatherless/Stranger (Psalms)

Spirit of Antichrist (I John 2:18)

Idols/Meat offered to Idols (Rev 2:20)

Tempting Christ/Murmuring (I Cor 10:9-10)

Fellowship with Devils (I Cor 10:20)

Cup/Table of Devils (I Cor 10:21)

Error (I Tim 6:21)

Fornication (I Cor 10:8, Rev 2:20)

Adultery (Rev 2:22)

Seduction (Rev 2:20, I Tim 4:1)

Lusts (2 Tim 3:6, Jude 1:18)

Leaven (I Cor 5:8)

Children of Disobedience (Eph 2:2)

Way/Error/Doctrine of Balaam (2 Pet 2:15)

Overthrow (I Cor 10:5)

Shipwreck (I Tim 1:19)

Vengence/Jealousy (of Christ) (Heb 10:29-30)

Blotting out of Book (Rev 3:5)

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(Verses given are not an exhaustive list)