The Ten Commandments are a set of religious and moral imperatives that are found in the Hebrew Bible. The Ten Commandments are traditionally written in two forms, one in the singular form and one in the plural form. In the singular form, the pronoun used is 'THOU, ' while in the plural form, the pronoun used is 'THEE.' Therefore, the crossword solutions for the term 'Ten Commandments Pronoun' are 'THOU' and 'THEE, ' both of which have four letters.