1 Timothy 3:6

He must not be a new convert, or he may grow conceited and incur criticism from slanderous people.

1 Timothy 6:4

is a conceited, ignorant person, with a morbid craving for speculations and arguments which result only in envy, quarreling, abuse, base suspicions,

Luke 10:18

He said to them, "I saw Satan fall from heaven like a flash of lightning!

1 Corinthians 3:1

So, for my part, brothers, I could not treat you as spiritual persons; I had to treat you just as creatures of flesh and blood, as babies in Christian living.

1 Corinthians 4:6-8

Now, brothers, for your benefit I have applied all this only to Apollos and myself, by using us as illustrations to teach you the old lesson, "Never go beyond the letter," and to keep any of you from boasting of one teacher at the expense of another.

1 Corinthians 8:1

About food that has been offered to idols, it is true, as you say, that we all have some knowledge on that matter. Knowledge gives people airs; love is what builds up character.

2 Corinthians 12:7

So to keep me from being too much elated a bitter physical affliction was sent to me, a very messenger of Satan, to harass me, to keep me from being too much elated.

2 Timothy 3:4

treacherous, reckless, conceited, caring more for pleasure than for God,

Hebrews 5:12-13

For although from the length of your Christian experience you ought to be teaching others, you actually need someone to teach you over again the very elements of Christian truth, and you have come to need milk instead of solid food.

1 Peter 2:2

and like new-born babes crave the pure spiritual milk that will make you grow up to salvation,

1 Peter 5:5

You younger men must show deference to the elders. And you must all clothe yourselves in humility toward one another, for God opposes the proud, but shows mercy to the humble.

2 Peter 2:4

For if God did not spare angels when they sinned, but plunged them into Tartarus, and committed them to dark dungeons to await their doom,

Jude 1:6

and the angels who neglected their responsibilities and abandoned their homes he has put in everlasting chains to be kept in darkness for the judgment of the great Day,

Treasury of Scripture Knowledge

Summary

Not a novice, lest being lifted up with pride he fall into the condemnation of the devil.

The condemnation

Bible References

Novice

1 Corinthians 3:1
So, for my part, brothers, I could not treat you as spiritual persons; I had to treat you just as creatures of flesh and blood, as babies in Christian living.
Hebrews 5:12
For although from the length of your Christian experience you ought to be teaching others, you actually need someone to teach you over again the very elements of Christian truth, and you have come to need milk instead of solid food.
1 Peter 2:2
and like new-born babes crave the pure spiritual milk that will make you grow up to salvation,

Lest

1 Corinthians 4:6
Now, brothers, for your benefit I have applied all this only to Apollos and myself, by using us as illustrations to teach you the old lesson, "Never go beyond the letter," and to keep any of you from boasting of one teacher at the expense of another.
1 Corinthians 8:1
About food that has been offered to idols, it is true, as you say, that we all have some knowledge on that matter. Knowledge gives people airs; love is what builds up character.
2 Corinthians 12:7
So to keep me from being too much elated a bitter physical affliction was sent to me, a very messenger of Satan, to harass me, to keep me from being too much elated.
1 Peter 5:5
You younger men must show deference to the elders. And you must all clothe yourselves in humility toward one another, for God opposes the proud, but shows mercy to the humble.

The condemnation

Luke 10:18
He said to them, "I saw Satan fall from heaven like a flash of lightning!
2 Peter 2:4
For if God did not spare angels when they sinned, but plunged them into Tartarus, and committed them to dark dungeons to await their doom,
Jude 1:6
and the angels who neglected their responsibilities and abandoned their homes he has put in everlasting chains to be kept in darkness for the judgment of the great Day,