Paul's Jewish ethics were completely replaced with Christ as the fulfillment of the law. He once practiced parsing the law and hedging it to derive right practice. After meeting Christ, parsing the law was no longer a requirement since it is fulfilled in the law of love. When Christ enables you to place God and others before yourself, he has reversed what Adam broke. Because of Adam we habitually and sinfully place ourselves before God and others.
There is no ethical question that can't be answered by understanding love.