《This is the Day》是由英國著名合唱作曲家約翰‧盧特（John Rutter）為英國威廉王子及凱特王妃於2011年4月19日，於倫敦西敏寺教堂舉行的婚禮所寫，歌詞取材自聖經詩篇的經文。
由於歌曲是用於婚禮，再加上以管風琴伴奏，所以整體氣氛十分神聖莊嚴。內容皆為讚美上主「賜與這美好的日子」，描述上主「保護屬祂的人遠離凶惡」，並呼籲會眾「完全信靠上主」。 讓我們透過詩歌，堅持讚頌上主，數算恩典，並立志完全信靠！
“This is the Day” was written by the famous British choral composer John Rutter for the wedding of Prince William and Princess Kate held in the Westminster Abbey in London on April 19, 2011. The lyrics are taken from the Psalms in the Scripture.
Since this song is written for a wedding, accompanied by the organ, it creates a sacred and solemn atmosphere. The lyrics of the song is praising the Lord for “making this day” that we shall “rejoice and be glad in it”. It also describes the Lord “shall preserve thee from all evil”, and calling on the congregation to “put thou thy trust in the Lord”. Let us keep praising the Lord, counting our blessings, and aspiring to trust completely through singing the songs of praise!
