Guidelines in Determining If and How a Biblical Command Applies Today

Last week, at Bible study, we discussed commands in the Bible and how to determine if a command still applies to today, and, if so, how to sort out the culture-specific aspects from the timeless principles. Here are a few guidelines adapted from  Dr. Robert Plummer's book 40 Questions about Interpreting the Bible, pg. 172 (Dr. Plummer was my Greek professor in Seminary and I am so thankful for his ministry to me).

1. Rephrase the biblical command in more abstract, theological terms. Is the injunction a culturally specific application of an underlying theological principle? Or are the command and cultural application inseparable? (example, "Greet each other with a holy kiss" seems to have an underlying principle of welcoming and loving fellow believers as fellow members of God's household. It does seem the principle is unchanging, but the cultural application [a holy kiss] seems to be able to be separated and replaced with a culturally specific application). 
2. Would a modern-day literal application of the command accomplish the intended objective of the biblical author's original statement? 
3. Are there details in the text that would cause one to conclude that the instructions are only for a specific place or time? (ex. 2 Tim. 4:13 Paul tells Timothy "when you come, bring the cloak that I left with Carpus..." Since Paul directs it to Timothy and it only would apply as long as Paul was living, this command does not apply to us). 
4. Are there details in the text that would cause one to conclude that the ... command applies unchanged in different cultures? (Is it based on God's character, his unchanging promises, or his design for all creation? Example "love one another, for love is from God." This is not a cultural issue, and the fact that it is rooted in love coming from God means it doesn't change).  
5. Do your conclusions cohere with the author's other statements and the broader canonical (whole-Bible) context? 
6. For Old Testament commands, how has the coming, life, death, and resurrection of Jesus, the promised Savior, changed things? (Ex. commands to sacrifice on the Day of Atonement are fulfilled by Jesus who "died once for sin" and is "seated at the right hand of God." This is not due to God changing. Rather, it is because God's plan has not changed. His plan has always been to give a "yes" and "amen" to all his promises in the coming of Jesus.) 
7. Beware of the deceitful human heart that would use interpretive principles to rationalize disobedience to Scripture.