King James Version (KJV)
That chant to the sound of the viol, {and} invent to themselves instruments of musick, like David; {chant: or, quaver}
Modern English
who strum on the strings of a harp; who invent for themselves instruments of music, like David;
Hebrew
הַפֹּרְטִ֖ים עַל־פִּ֣י הַנָּ֑בֶל כְּדָוִ֕יד חָשְׁב֥וּ לָהֶ֖ם כְּלֵי־שִֽׁיר׃
haporṭiym ʿal-piy hanabel kdaviyd ḥashbv lahem kley-shiyr