26 But watch out for the devil. He can capture you whenever he wants.
In the last days, men will lose natural affection (and silly, lustful women will be always learning)
31-2 In the last days, people will love themselves, covet, boast, blaspheme, disobey their parents, be ungrateful, and unholy.
3 They will lack natural affection, accuse people falsely, be incontinent, fierce, and hate everything that is good.
4 They'll be traitors, heady, and high-minded, and will love pleasure more than God.
5 They'll seem holy but will deny its power. Stay away from them.
6 They'll cause silly women, filled with sin, to be carried away with lust.
7 Such women are always learning, but never know the truth.
8 As Jannes and Jambres resisted Moses, they resist the truth. They are reprobates, with corrupt minds.
13 Evil people and seducers will get worse and worse, always deceiving and being deceived.
All scripture is inspired by God (and is useful for teaching doctrine and morals)
16 All scripture is inspired by God and is useful for teaching doctrine and morals.
I have fought the good fight (so I deserve a crown of righteousness)
42-4 Keep preaching, because the time will come when people won't believe sound doctrine.
They'll have itching ears, listening to those who encourage them to follow after their own lusts,
believing in fables rather than the truth.
7 I have fought the good fight, I have finished my course, I have kept the faith.
8 So the Lord will give me a crown of righteousness when he appears on that day.
Although Second Timothy claims to have been written by Paul, most scholars believe that it was written by someone else long after his death.
Hymeneus and Philetus (2:17)
Hymeneus and Philetus condemned for disagreeing with "Paul" about the timing of the resurrection. (See 1 Tim 1:20 where Hymeneus and Alexander are handed over to Satan to teach him not to blaspheme, and 2 Tim.4:14-15 where "Paul" asks God to "reward" Alexander "according to his works.") Philetus isn't mentioned anywhere else in the Bible.
As Jannes and Jambres resisted Moses (3:8)
In Exodus, there's a fun competition between Aaron and the Pharaoh's magicians. Aaron turns his rod into a snake, and the magicians do likewise (7:11). He turns the river into blood, and the magicians do that too (7:22). The same thing happens with frogs (8:7). But the magicians couldn't do Aaron's lice trick, at which point they gave up and told the Pharaoh that the lice were created by the finger of God (8:18-19).
The story in Exodus doesn't name Pharaoh's magicians, so the author of 2 Timothy must have got their names from another source. (Wikipedia: James and Jambres)
All scripture is inspired by God (3:16)
Demas has forsaken me. (4:10)
Because of this verse, Demas is sometimes called Paul's Judas.