Luther didn't reject Catholicism or Orthodox teaching... he rejected certain aspect of it. He rejected far more of
Calvin's teaching then of Catholic and Orthodox.
Where he lost it with the Church was when bitterness set in and then his emotions turned to hatred for the bishops and the rest is history. that's when he wanted to throw out the Latin Rite, so to speak.
You have to understand when we see hatred and bitterness like what Luther clearly showed toward the Catholic Church this is how we know this split was not from God... Luther displayed the rotten fruits of the enemy which is resentment, bitterness and hatred.
Sadly, this "spirit" of bitterness, hatred and resentment is passed down to those who rebel. We see on here, all the threads that are nothing more than uncharitable, unfounded attacks against Catholicism
I have seen this disillusioned view of Luther and Calvin agreeing... no, they were on total opposite ends of the spectrum. Luther hated Calvin for doing away with the Liturgy and the sacraments. Luther also didn't believe that man's free will was restricted.
Luther rejected Orthodoxy for one reason only, HE,
Luther wanted to be pope. He wanted to be the head of his own "reformed" church and if you don't believe that, read up on him.
You will see when all the peasants went crazy being their own authority of scripture, Luther said, "They were better off as papists." He never intended for all this to happen, he thought
he was going to be the only reformer there was. That
he was reforming the Catholic Church.
From all that we have seen in retrospect, Luther plan didn't work, it backfired greatly, this is how we know it was not God's doing.
And the Catholic and Orthodox teaching the "glory of man" ... this is another false premise, it's an illogical conclusion that you have personally drawn.
If we don't agree with the doctrine of men from the 16th century, we glorify man...
it's just an illogical and baseless claim, a strawman's calim, a logical fallacy.