Christians submit to God, which is the Optimus maximus, the greatest good.
When a Christian do something, he ask himself if that is in tone with God's commandments and values.

Nietzche was a materialist who denies any trascendental existence. He misunderstand as well Paganism since Pagan gods also had commandments. According to Nietzche, we must be our own masters, this is, Nihilism is the ultimate stage of Liberalism, quintessentially Satanism since Satan seeks to make his own will, he doesn't obey God.

The Christian would call himself a proud slave of God, even despite Jesus, God himself, said to his followers "you are not serfs anymore, but frieds". Because Christians know that God is the ultimate goodness.

But any atheist Nihiilist that follows Satanic Liberal mentality is already following another. They are trying to rebel against God because Nietzche wrote so. And Nietzche as well wrote that because he did grow in a Protestant Liberal Germany in the century of Liberalism and Protestantism.

A Christian is a person filled with Goodness, ie, God, a Christian wants God, the ultimate good, to lead him.
A Nihilist seek to be empty of content while is also leaded by the thinking of others.

You read Job and thought it was Saw VII? Job's trial is a crucible, not sadism. That is, man's purification through suffering is 'de fide' (cf. Romans 5:3–5). You're setting up a false dichotomy here between "le evil God" and "le good God" when, in reality, it should be about a JUST God.

>but muh dualism
Just admit you're Manichean (or worse, a crypto-Luciferian).