Galatians 6:4
But let each person test his own accomplishments so that he can determine if he should get credit for them or if his neighbor should.
1 Corinthians 11:28
So, a person should examine himself [first] and then he should eat the bread and drink from the cup.
2 Corinthians 13:5
Put yourselves to a test; see if you are [really] in the faith [i.e., see if you are genuine Christians]; examine yourselves! Or, do you not realize that Jesus Christ is in your hearts, unless [of course] you fail the test [i.e., unless you are counterfeit Christians].
Luke 18:11
The Pharisee stood up [conspicuously] and prayed about himself this way [i.e., bragging to God about how good he was], 'God, I thank you that I am not like other people: swindlers, unjust, sexually unfaithful to their mates, or even like that tax collector [over there].
1 Corinthians 1:12-13
Now this is what I mean: Each of you is saying, "I am a follower of Paul," and another "I am a follower of Apollos," and another "I am a follower of Cephas [i.e., Peter]," and another "I am a follower of Christ."
1 Corinthians 3:21-23
So, no one should boast about [the knowledge or position of] people. For all things belong to you,
1 Corinthians 4:3-4
But it is a small matter for me to be judged by you or by any human court, for I do not [even] judge myself [to be wrong].
1 Corinthians 4:6-7
Now I have applied these things, brothers, to myself and to Apollos as an illustration for your benefit, so that you might learn to "follow the written message." [Note: This is thought to have been a common way of referring, in that day, to the importance of adhering to Old Testament Scripture]. So, none of you should be more proud of one [leader] than of another.
2 Corinthians 1:12
For this is what we boast of: Our conscience testifies that we have conducted ourselves in the world, and especially toward you, in holiness and godly sincerity, not with human wisdom, but with the favor of God.
2 Corinthians 11:12-13
But what I am doing, I will continue to do, so that I can cut off the opportunity from those who want an occasion [to receive financial support for themselves because of my example of receiving it]. They want to boast [that they are preaching] on the same terms as I do. [Note: Paul's argument seems to be that one reason for his foregoing financial support was so those "super apostles" in Corinth (see verse 5) would not be able to use his example to wrongfully exact financial support from the church].
Galatians 6:13
For not even those who practice circumcision comply with [the requirements of] the law of Moses, yet they want you to be circumcised so they can take credit for this physical evidence [of your compliance with the law of Moses].
1 John 3:19-22
And this is how we will know that we are following [God's] truth, and will have assurance [of it] in our hearts and before God [as well].