Romans 11:25
For I want you to know this secret, brothers, so you will not become conceited: Part of the Israelites have become [spiritually] insensitive [to God], [and will remain that way] until the fullness of the Gentiles occurs. [Note: As with verse 12, concerning the Jews, "fullness" here may mean either a large or the complete number of Gentiles who will be saved].
1 Corinthians 3:18
No one should fool himself. If any person among you thinks he is smart, by human standards, he should become a "fool," so that he can become [really] wise.
1 Corinthians 8:2
If anyone thinks he knows something, he [really] does not know as much as he ought to.
James 1:5
But if any one of you lacks wisdom, he should pray to God, who gives to everyone generously and does not begrudge [the person who asks], and it will be given to him.
2 Peter 2:12-16
However, these people are like unreasonable, ignorant creatures of instinct, born as animals which are [to be] caught and destroyed. They speak out against things about which they are ignorant. In [the process of] destroying others, they will certainly be destroyed themselves.