1 Timothy 6:20-21

Timothy, guard what has been entrusted to your care. Turn away from godless chatter and the opposing ideas of what is falsely called knowledge, which some have professed and in so doing have departed from the faith. Grace be with you all. 

guard what has been entrusted to your care 
2 Timothy 1:11-14  And of this gospel I was appointed a herald and an apostle and a teacher. That is why I am suffering as I am. Yet this is no cause for shame, because I know whom I have believed, and am convinced that he is able to guard what I have entrusted to him until that day. What you heard from me, keep as the pattern of sound teaching, with faith and love in Christ Jesus. Guard the good deposit that was entrusted to you--guard it with the help of the Holy Spirit who lives in us.

Turn away from godless chatter 
2 Timothy 2:16  Avoid godless chatter, because those who indulge in it will become more and more ungodly.

and the opposing ideas of what is falsely called knowledge 
1 Corinthians 8:1b-2  We know that "We all possess knowledge." But knowledge puffs up while love builds up. Those who think they know something do not yet know as they ought to know.
1 Corinthians 13:2  If I have the gift of prophecy and can fathom all mysteries and all knowledge, and if I have a faith that can move mountains, but do not have love, I gain nothing.
1 Corinthians 13:8  Love never fails. But where there are prophecies, they will cease; where there are tongues, they will be stilled; where there is knowledge, it will pass away.

which some have professed and in so doing have departed from the faith 
1 Timothy 6:10  For the love of money is a root of all kinds of evil. Some people, eager for money, have wandered from the faith and have pierced themselves with many griefs.
2 Timothy 2:17-18  Their teaching will spread like gangrene. Among them are Hymenaeus and Philetus, who have departed from the truth. They say that the resurrection has already taken place, and they destroy the faith of some.

Grace be with you all 
Colossians 4:18  I, Paul, write this greeting in my own hand. Remember my chains. Grace be with you all.

Scriptures taken from the Holy Bible, New International Version® NIV®, 
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