This is a phrase said by Christians when speaking about God. I have never heard, nor have I ever used it except when speaking about God. It means that you think highly of God.

thee = you Its an old way of saying "you". same way, you can use the following : Thee : You Thy : Your Thou : you some examples : Thee I beseech thee, my friend. (I request you my friend) I am most content when I am with thee. (I am happiest when I'm with you). We are indebted to thee for thy kindness. (We are indebted to you for your kindness). Thy Thy intentions seem cruel. A rogue liveth (lives) in thy home. Honour thy father and thy mother. Thou Thou art (are) the only one that I trusteth (trust). (You are the only one that I trust) Thou knoweth (know) not of my power. (You don't know of my power) Thou shalt see thy fate in time. (You shall see your fate in time) Hope it helps