kasemann

Love, however, does not content itself with what is demanded by a precept or moral usage but serves this actual neighbour in his present need. It does not, therefore, persist in blind obedience to an established norm but acts with open eyes and decisive common sense, its gaze fixed on something which has urgently to be done now and will not recur.
—  Ernst Kasemann on New Testament ‘ethics’  (From “New Testament Questions of Today” p. 198)
If as Paul sees it existence is defined by its lord, the basic understanding of existence comes to expression in boasting. In this, a person tells to whom he belongs. In his fallen state he boasts of himself and the powers. The apostle attacks this, since it is a denial of creatureliness.
—  Ernst Kasemann, Commentary on Romans, 133