Commenting on Psalm 23:
"...Here is a soul that is resting in God, and a soul that KNOWS it is resting in God; a soul that not only knows the Shepherd, but knows that it knows the Shepherd. Because it knows the Shepherd, because it can say 'The Lord - Jehovah Jesus - is my Shepherd', then it can go on to say all the other things. I think it was Martin Luther who said that the essence of the blessing of being a Christian lay in the ability to use personal pronouns. The use of the words 'I' and 'my' and 'me' is only possible because we are linked into the life of Christ."
The Lord Our Shepherd, 76.