Simple Ex. method: // avoid unicode chars in code private const char FirstHebChar = ( char )1488; //א private const char LastHebChar = ( char )1514; //ת private static bool IsHebrew ( this char c ) { return c >= FirstHebChar && c <= LastHebChar ; } Note: a comment bellow noted that the above function solely checks for hebrew characters within the א-ת range, it won't include punctuation marks, vowels or other biblical symbols. For a function that covers all (all that I'm aware...