That would be moral directive from authority or conventional morality I think.
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Stage 4? possibly seeking approval from God?
Stage 5? Possibly a universal principle of love? Whereas the Bible provides some general guidelines to maintain order, A principle of universal love might accept possible exceptions to the guidelines of the Bible.
I read what
@pearl said and I agree with it. I would rule out Stage 4 here in regards to the 1st commandment to "love God" as being what truly fulfills all the Law. First, it's better to lump that commandment with the 2nd commandment that Jesus taught, "Love your neighbor as yourself". It's those two together that "all the law and the prophets hang", or depend upon.
The reason that "loving God" at that level of spiritual development is not "seeking approval from God", is because that type of love is totally self-emptying. "Not my will but thine be done". "Give me your approval", is not self-emptying. It is self-seeking.
It has the ego and its needs as front and center. It is seeking to satisfy itself, and hence the whole chain of Love, from the Source of the Divine reality, to others through yourself, is broken at the cravings of the ego.
Where the height of the spiritual and moral action arises is when someone is aligned with the "Way" of "God" or the Tao, or Reality itself, which are like the facts of gravity or centrifugal forces. You work with these things, and when you go against the grain of them, there are consequences. But when you align yourself with them, life flows more smoothly and without effort.
That is how I understand "Love God and love your neighbor as yourself". The latter is the natural result of the first action, which is to seek to be in alignment with "the will of God" to use that language, or Wu Wei. When the ego is out of the way, then the true Nature of Love flows naturally, without effort, from Source, to the world. That is what it means to seek God, or love God, with all your heart, mind, soul, and strength. With all that is in you, harness that wild horse of our own egos and tame it, lay it to rest.
How that fits into the Stages of moral development, I'd say is stage 6. It is that "law written upon the tablets of heart", flowing from within to without, as opposed to externalized rules chiseled into stone.