'Enough' in the Bible

And God gave him no heritage in it, not even enough to put his foot on: but he gave him an undertaking that he would give it to him and to his children after him, though he had no child at that time.

And when John was completing his work, he said, What do I seem to you to be? I am not he; but one is coming after me, whose shoes I am not good enough to undo.

Why then are you testing God, by putting on the neck of the disciples a yoke so hard that not even our fathers or we were strong enough for it?

And as I had not enough knowledge for the discussion of these things, I made the suggestion to him to go to Jerusalem and be judged there.

And when they had had enough food, they made the weight of the ship less, turning the grain out into the sea.