Chapter 100 in Tehillim is Mizmor L'Toda which we say every day in Pesukay D'Zimra. What is the connection between this chapter of Tehillim and the basic obligation to say thanks (toda) to G-d? What is the connection between our obligation to say thanks to G-d and the Jews being, 'His nation and his flock of sheep'? Chapter 101 in Tehillim is Dovid's manifesto. In this chapter of Tehillim, Dovid sets down his priorities as the leader of the Jews.