I don't know if I subscribe to your definition of humanistic (I'm not a secular humanist nor a religious humanist), but I do believe that all of our actions should be justified internally with reason, ethics and justice. All that is encompassed by our developed human nature. I just factor in a few more checks and balances, such as intuition, the Holy Spirit, and a comprehensive scripture check. Just to clarify I don't deny any of my own human aspects and value every life at least as a fellow human.
"There ought to be a term that would designate those who actually follow the teachings of Jesus, since the word 'Christian' has been largely divorced from those teachings, and so polluted by fundamentalists that it has come to connote their polar opposite: intolerance, vindictive hatred, and bigotry." -- Philip Stater, Huffington Post
always working on cleaning my windows- me regarding Johari
always working on cleaning my windows- me regarding Johari
