The Hebrew noun zimrah means music, a song of praise, or melodious singing. It is derived from zamar (H2167), the verb for making music or singing praise. Zimrah emphasizes the musical product — the song itself — as an offering of worship to God.
Zimrah appears in some of the Bible's most exalted worship passages. In Exodus 15:2 and Psalm 118:14, the identical phrase is used: 'The LORD is my strength and my zimrah, and he has become my salvation.' Isaiah 12:2 repeats this confession. The word captures the idea that worship music is not decoration on top of theology — it is theology in sonic form, the heart's praise given a voice.