Behold, God is my salvation... — The words admit of the rendering, Behold the God of my salvation. In either construction “salvation” is taken, as in the New Testament (John 4:22; 1 Peter 1:9-10), as meaning more than mere deliverance from danger, and including the highest spiritual blessings.
The Lord Jehovah... — The Hebrew here and in Isaiah 26:4 presents the exceptional combination of the two Divine Names (Yah Yahveh). (See Psalms 68:4.) With this exception the second clause of the verse is a verbal reproduction of Exodus 15:2.