Genesis 9:3 happens to also be scripture.
Yes it is. It is very clear in what it states in its context:
Gen 9:3 Every moving thing that liveth shall be meat for you; even as the green herb have I given you all things.
Gen 9:4 But flesh with the life thereof, which is the blood thereof, shall ye not eat.
Gen 9:5 And surely your blood of your lives will I require; at the hand of every beast will I require it, and at the hand of man; at the hand of every man's brother will I require the life of man.
The words "even as" refer back to Genesis 1-2, in which God made distinction between that which was good for food and that which was not good for food. God never gave mankind thorns and thistles to eat either. There are poisonous plants that are not good for food.
In context, God stated in vs 5, that for every clean animal eaten (minus blood, minus fat, minus diseased, minus strangled, minus dieth of itself, etc), that God was going to shorten the lifespan of man. God allowed the temporary eating of the clean animals so that sinners would not live such prolonged lives. Take careful notice that the lifespan of mankind after Noah immediately dropped from 900 to 400's to 200's to 100's to 70-80, within a few generations.
God, during the time of the Exodus was already bringing mankind back to a better diet. See the manna and the spring water from the rock. They had run out of flesh and craved it. Watch the sermon I shared earlier.
Hosea foretold the time in which all animals (beasts, birds and bait (fish)) would become diseased, sick unto death, because of the increase of the sin of mankind, and that none of it would be safe for consumption. God is leading us back to the diet of the Garden in Eden, the diet of Heaven. All who know and do not take heed will perish by the coming plagues, even as those in the wilderness of old, died by the plague that broke out upon them. 1 Corinthians 10; Psalms 78; Numbers 11.
Noah was merely pointing to Christ Jesus. The real Lamb of God, the real sacrifice. God does not desire dead flesh sacrifices. God desires living sacrifice.
Jesus when resurrected indeed ate fish. He was still on earth, the courtyard, and not yet entered into the work in Heaven, where there is no death at that time. Why do you remain in the courtyard theology, when Jesus has long since moved on into the Holy and Most Holy Place theology? Why do you stay in the past example, and not the present example? The Light has moved on from you, and unless you keep up, you will remain in darkness.