Matthew 12:36-37

And I say to you, that for every idle word that men shall speak, they will give account in the day of judgment.

Luke 10:29

But he, wishing to justify himself, said to Jesus, And who is my neighbor?

Luke 16:15

And he said to them, Ye are they who justify yourselves before men; but God knoweth your hearts; for that which is highly exalted among men is an abomination before God.

Philippians 3:12-15

Not that I have already obtained, or have been already perfected; but I press on, if I may also lay hold of that for which I was laid hold of by Christ.

1 Timothy 6:5

incessant disputings of men corrupted in their minds, and destitute of the truth, supposing that godliness is gain.

James 3:2

For in many things we all offend. If any one offend not in speech, the same is a perfect man, able to bridle the whole body also.

Treasury of Scripture Knowledge

Summary

If I justify myself, mine own mouth shall condemn me: if I say, I am perfect, it shall also prove me perverse.

I am perfect

It shall

Bible References

Justify

Luke 10:29
But he, wishing to justify himself, said to Jesus, And who is my neighbor?
Luke 16:15
And he said to them, Ye are they who justify yourselves before men; but God knoweth your hearts; for that which is highly exalted among men is an abomination before God.

Mine

Matthew 12:36
And I say to you, that for every idle word that men shall speak, they will give account in the day of judgment.
James 3:2
For in many things we all offend. If any one offend not in speech, the same is a perfect man, able to bridle the whole body also.

I am perfect

Philippians 3:12
Not that I have already obtained, or have been already perfected; but I press on, if I may also lay hold of that for which I was laid hold of by Christ.

It shall

1 Timothy 6:5
incessant disputings of men corrupted in their minds, and destitute of the truth, supposing that godliness is gain.