👉 The term "hallelujah" is a Christian hymn that is often used to express gratitude, praise, and joy. It was first sung by Thomas More in 1539 during his trial for treason. The word "hallelujah" comes from the Hebrew word "haylah", which means "joyful". In English, it translates to "joyous cry of blessing" or "joyous shout of praise."