Here "holy hands" means the entire person is holy. AT: "I want men in every place who are holy to lift up their hands and pray" (See: [[rc://en/ta/man/translate/figs-metonymy]])
Both of these words mean basically the same thing. Paul is emphasizing that women should wear clothes that are appropriate and do not attract improper attention from men. (See: [[rc://en/ta/man/translate/figs-doublet]])
During Paul's time, many Roman women braided their hair to make themselves attractive. Braiding is only one way a woman can give undue attention to her hair. If braided hair is unknown, it can be stated in a more general way. AT: "They should not have fancy hairstyles" or "They should not have elaborate hairstyle that attract attention" (See: [[rc://en/ta/man/translate/figs-metonymy]])
These are beautiful and valuable white balls that people use as jewelry. They are formed inside the shell of a certain kind of small animal that lives in the ocean. (See: [[rc://en/ta/man/translate/translate-unknown]])