Berean Standard Bible (BSB)
Nor should you swear by your head, for you cannot make a single hair white or black.
World English Bible (WEB)
Neither shall you swear by your head, for you can’t make one hair white or black.
Strong's King James
Neither{G3383} shalt thou swear{G3660}{(G5661)} by{G1722} thy{G4675} head{G2776}, because{G3754} thou canst{G1410}{(G5736)} not{G3756} make{G4160}{(G5658)} one{G3391} hair{G2359} white{G3022} or{G2228} black{G3189}.
The F.O.G *
(36) Nor make a vow by your head for you can't make one hair white or black.
The F.O.G Message *
Young's Literal Translation
nor by thy head mayest thou swear, because thou art not able one hair to make white or black;