In 2 Tim. 2:24, Paul uses three adjectives to describe Christian leaders, including those of us who teach.
Here's my rendering of the verse:
"As the Lord's slave, you should not be quarrelsome or argumentative. Instead, be gentle and even-handed no matter who you are dealing with, ready and able to teach, and patient with difficult people, willing even to suffer wrong from them if need be."
I'm memorizing this verse in Latin, by the way. Here's what it sounds like:
Friends, our students are God's masterpieces (Eph. 2:10), but as yet they're diamonds in the rough. So be patient. We can't expect them to be perfect and always act the right way or do the right thing. We can't ignore these things. It's just that cutting and shaping takes time!