Judah was his sanctuary, and Israel his dominion.
Judah — Or Israel, one tribe being put for all. Judah he mentions as the chief of all the tribes.
 The mountains skipped like rams, and the little hills like lambs.
The mountains — Horeb and Sinai, two tops of one mountain, and other neighbouring mountains.
 Tremble, thou earth, at the presence of the Lord, at the presence of the God of Jacob;
Tremble — The mountains did more than what was fit at the appearance of the great God.