I'll rightly divide by what's written in the scripture. We died to the (OT) law (and animal sacrifices), as Paul clearly said. However, when a commandment of the Lord is given in the New Testament, does it only apply to the early church? Liberals says 'yes', and thereby justify gay marriage. I say it still applies.
Then may I suggest a thorough reading of Eph. Chapter 2? Because until you understand when “time past” ended and “but now” began, you will never be able to study God’s word rightly divided. And you WILL be ashamed when you stand before Him. 2 Tim. 2:15. God would not tell us how to be approved unto Him, without showing us how to do this.