'Middle' in the Bible

And by evening, the boat was in the middle of the sea, and he by himself on the land.

And he took a little child, and put him in the middle of them; and taking him in his arms, he said to them,

So you are to keep watch: because you are not certain when the master of the house is coming, in the evening, or in the middle of the night, or at the cock's cry, or in the morning;

And the high priest got up in the middle of them, and said to Jesus, Do you say nothing in answer? what is it which these say against you?