'Ought' in the Bible

And I have written this very letter to you, that coming I may not have grief from those from whom I ought to have joy; trusting in you all that my joy is that of you all.

I have become a fool; ye have compelled me; for I ought to have been commended by you; for I have been nothing behind those who were in surpassing degree apostles, if also I am nothing.

Behold, this third time I am ready to come to you, and I will not be in laziness a charge; for I do not seek yours, but you; for the children ought not to lay up for the parents, but the parents for the children.