Without truth, our approach to morality is forever subject to the whim of human desire.
The key to understanding morality is determining what is right, first, so that by default we equally know what is wrong. When Jesus’ truth resides within our heart, and if we also then abide in his truth, we won’t try to do right by not doing wrong, but instead simply fight to do right and thereby avoid willful wrongdoing. This goes hand in hand with fighting against religious legalism, which always involves morality. We cannot appease truth by telling ourselves, “Do this; do that; don’t do this; don’t do that”, regardless of the superficial benefits to our self and society. Truth says, “Submit yourself to me – completely – and I will empower you to do all things according to my right ways, not yours.”
The essence of sexual morality hinges on the very meaning of marriage, and marriage, truth. Truth is the unifying factor in marriage and he created the human version of marriage to unify our two opposite genders, not to break down two persons of the same gender who try to sexually unite. In human terms then, marriage is not temporary but is the lifetime union between a man and a woman, for once any two beings are truly unified, both will irreparably break if something ever divides them; they are literally and irrevocably in and through each other, becoming each other, forever.
Therefore, if truth – the unifying factor in marriage – resides within our heart and we abide also in that truth, we will not willfully lust after someone who is not our spouse; we will not purport that same gender sex is okay, let alone which age makes it okay; we will not cry foul when our gay rights are denied; and we will not argue for legal freedom to practice bestiality, objectophilia, pedophilia, or any other morally questionable activity.
Truth is what it is, and by its very existence reveals what it is not. Truth is morality, and all it is not within is hopelessly immoral, including our desires. If Living Truth does not reside within your heart, or does but you choose to ignore its sovereignty, and if then you assign moral status to any religion, activity, desire, or behavior, your motive for doing so has nothing to do with truth, only self-indulgence, even if for reasons of “righteous” asceticism and austerity. Truth alone empowers moral assignment, but if Truth is missing from your heart you will not know it; you will carry on assigning and un-assigning, believing that you alone are purveyor of the very truth you so adamantly reject.