The Spirit clearly says that in later times some will abandon the faith and follow deceiving spirits and things taught by demons.
NIV
BUT THE [Holy] Spirit distinctly and expressly declares that in latter times some will turn away from the faith, giving attention to deluding and seducing spirits and doctrines that demons teach,
AMP
Now the Spirit speaketh expressly, that in the latter times some shall depart from the faith, giving heed to seducing spirits, and doctrines of devils;
KJV
Don't let anyone look down on you because you are young, but set an example for the believers in speech, in conduct, in love, in faith and in purity.
NIV
Let no one despise or think less of you because of your youth, but be an example (pattern) for the believers in speech, in conduct, in love, in faith, and in purity.
AMP
Let no man despise thy youth; but be thou an example of the believers, in word, in conversation, in charity, in spirit, in faith, in purity.
KJV
Be diligent in these matters; give yourself wholly to them, so that everyone may see your progress.
NIV
Practice and cultivate and meditate upon these duties; throw yourself wholly into them [as your ministry], so that your progress may be evident to everybody.
AMP
Meditate upon these things; give thyself wholly to them; that thy profiting may appear to all.
KJV
They forbid people to marry and order them to abstain from certain foods, which God created to be received with thanksgiving by those who believe and who know the truth.
NIV
Who forbid people to marry and [teach them] to abstain from [certain kinds of] foods which God created to be received with thanksgiving by those who believe and have [an increasingly clear] knowledge of the truth.
AMP
Forbidding to marry, and commanding to abstain from meats, which God hath created to be received with thanksgiving of them which believe and know the truth.
KJV
Watch your life and doctrine closely. Persevere in them, because if you do, you will save both yourself and your hearers.
NIV
Look well to yourself [to your own personality] and to [your] teaching; persevere in these things [hold to them], for by so doing you will save both yourself and those who hear you.
AMP
Take heed unto thyself, and unto the doctrine; continue in them: for in doing this thou shalt both save thyself, and them that hear thee.
KJV