“In that day you will say: Give praise to the Lord, proclaim his name, make known among the nations what he has done, and proclaim that his name is exalted.” (Isaiah. 12.4)
‘Tell out, my soul, the greatness of the Lord! Unnumbered blessings give my spirit voice’
The words of Isaiah go back some 1100 years, while the hymn was composed only in the 1960s, but the writers have in common an overwhelming sense of joy and thankfulness for God’s blessings which simply has to be shared with others. There is no more powerful testimony to faith than the thankfulness that overflows into praise, and shows itself not only in words but in the way we live.
Lord, give us that due sense of all thy mercies, that our hearts may be unfeignedly thankful, and that we show forth thy praise not only with our lips, but in our lives, by giving up ourselves to thy service... (From the General Thanksgiving, BCP)