'Behave' in the Bible

Therefore, since we have such a hope, we behave with great boldness,

We do not have the audacity to put ourselves in the same class or compare ourselves with some who [supply testimonials to] commend themselves. When they measure themselves by themselves and compare themselves with themselves, they lack wisdom and behave like fools.

I urged Titus to visit you and I sent our brother along with him. Titus did not take advantage of you, did he? Did we not conduct ourselves in the same spirit? Did we not behave in the same way?