Call upon his name - בשמו קראו kiru bishmo, invoke his name. Make him your Mediator, or call the people in his name. Preach him who is the Root of Jesse, and who stands as an ensign for the nations. Call on the people to believe in him; as in him alone salvation is to be found.
And in that day - (see Isaiah 12:1).
Call upon his name - Margin, ‹Proclaim.‘ It denotes to call upon him in the way of celebrating his praise. The whole hymn is one of praise, and not of prayer.
Declare among the people - Among all people, that they may be brought to see his glory, and join in the celebration of his praise.
His doings - Particularly in regard to the great events which are the subject of the previous predictions - his interposition in saving people by the Messiah from eternal death.
Make mention - Hebrew, ‹Cause it to be remembered‘ (see the note at Isaiah 62:6).
That his name is exalted - That it is worthy of adoration and praise. It is worthy to be exalted, or lifted up in view of the nations of the earth 2 Samuel 22:47; Psalm 21:13; Psalm 46:10.