This exclamation shows that David is afraid of his enemies. AT: "Oh Yahweh, I have so many enemies!" (See: [[rc://en/ta/man/translate/figs-exclamations]])
This may be a musical term that tells people how to sing or play their instruments here. Some translations write the Hebrew word, and some translations do not include it. (See: [[rc://en/ta/man/translate/translate-transliterate]])