'Mind' in the Bible

But I will raise up for Myself a faithful priest who will do according to what is in My heart and in My soul; and I will build him a permanent and enduring house, and he will walk before My anointed forever.

Samuel answered Saul, “I am the seer. Go on ahead of me to the high place, for you shall eat with me today; and in the morning I will let you go, and will tell you all that is on your mind.

And his armor bearer said to him, “Do everything that is in your heart (mind); here I am with you in whatever you think [best].”