Psalm 118 verse 24 states, “This is the day which the Lord hath made; we will rejoice and be glad in it.” And yes, the Christian song “This is the day” is precisely based on this beautiful Psalm that King David possibly wrote, since it was sung during the founding of the second temple.
This Christian hymn has been sung for many years, and it conveys that feeling that we should rejoice and rejoice to praise our Lord, and this regardless of the situation we are going through. So, on this day, may the words of this song help us to consider our position of always being joyful to praise God.