Consideration of context, such as to whom a letter was addressed, is a valid hermeneutic methodology. An additional example would be Paul's admonition (1 Cor. 11) that women cover their heads when praying or prophesying, a matter of social custom which today's society disregards; God never commanded nor did the Bible elsewhere teach that uncovered female heads are sinful. Women were to remain silent in the church (1 Cor. 14) but now we have female lectors and singers (and sometimes more than those). Paul made a vow and had his head shaved, but we no longer do that. None of these things which are localized in time or place have ever been thought to negate the inspired nature of the scriptures containing them.