'Minds' in the Bible

And it seems right to me, as long as I am in this tent of flesh, to keep your minds awake by working on your memory;

My loved ones, this is now my second letter to you, and in this as in the first, I am attempting to keep your true minds awake;

But in taking this view they put out of their minds the memory that in the old days there was a heaven, and an earth lifted out of the water and circled by water, by the word of God;