'Behave' in the Bible

Were it not that I feared the wrath of the enemy, lest their adversaries should behave themselves strangely, and lest they should say, Our hand is high, and the LORD hath not done all this.

Be of good courage, and let us behave ourselves valiantly for our people, and for the cities of our God: and let the LORD do that which is good in his sight.

I will behave myself wisely in a perfect way. O when wilt thou come unto me? I will walk within my house with a perfect heart.

And the people shall be oppressed, every one by another, and every one by his neighbour: the child shall behave himself proudly against the ancient, and the base against the honourable.