down under…
I have to agree with paul c here. Our first duty is to Love. I say that because, while you rightly point to the 10 commandments - I will point to Mt 22:36-40 where Jesus tells us that root and basis for the 10, and indeed for all the law and the prophets is Love.
So - the first duty is to love…and all the rest is provided as a guide in how to recognize, grow and implement that Love.
Now - having said that - it is easy to see that while we are spiritual children - like Paul referred to the Corinthians in 1 Cor 3:2 - it is necessary and good that we learn to “do no evil” as a first step in learning to Love.
Perhaps this is what you were referring to. That recognizing, understanding and subduing these negatives from our lives is the first step in our spiritual growth.
Peace
James