'Excellency' in the Bible

There is none like unto the God of Jeshurun, who rideth upon the heaven in thy help, and in his excellency on the sky.

Happy art thou, O Israel: who is like unto thee, O people saved by the LORD, the shield of thy help, and who is the sword of thy excellency! and thine enemies shall be found liars unto thee; and thou shalt tread upon their high places.