Let us look to the Bible, considering passages that deal with nakedness, clothing, & modesty. Is there a verifiable biblical pattern of public modesty requirements for both men & women alike, regardless of custom or setting?  

When Noah got drunk, he became uncovered in his tent, and Ham saw the nakedness of his father (Gen. 9:20-27). We may question what more Ham “had done” to Noah (that he looked upon Noah’s nakedness and told his brothers; was he scoffing, etc., ?), but Ham observing Noah naked (even in Noah’s tent), did not bring about a good result! Contrast that with how the other two brothers (Shem & Japheth) were very careful not to look upon their own father’s nakedness. Are there any applications we can make from here? What of bathing in front of children, at home? What about swimming with scant clothing in front of family and friends (e.g., revealing/formfitting bathing suits/swim trunks)? 

When the Law of Moses was granted to the Israelites, priestly garments are said to have covered their nakedness (See Exod. 28:40-43; Cf. 20:25-26). Notice that their undergarments were to be from the waist to the thighs. First, we want to acknowledge that this was a specific requirement for priests… But we also want to acknowledge – the reason – was to have their nakedness (bare flesh) covered. Certainly, God can see anyone’s nakedness, anytime (Heb. 4:13). But the matter of approaching Him in spiritual service of worship was regulated by God in the OT, and He is the one who defines what was considered “nakedness.” I wonder if the Israelites ever dealt with controversy determining what God meant when He said, “And you shall make for them linen trousers to cover their nakedness; they shall reach from the waist to the thighs.” (28:42). This passage is often referenced to make the case for shorts/skirts reaching to the knee to be a suitable covering. 

Perhaps that is a good practice, as well as the matter of being mindful of what my clothing may reveal in certain positions (I.e., sitting, bending over, etc.). It is not too difficult of a thing to think through if our number one priority is to honor God – even in the way I choose to dress.