Daniel 1:16

1:16 So the warden removed the delicacies and the wine from their diet and gave them a diet of vegetables instead.

Genesis 1:29-30

1:29 Then God said, “I now give you every seed-bearing plant on the face of the entire earth and every tree that has fruit with seed in it. They will be yours for food. 1:30 And to all the animals of the earth, and to every bird of the air, and to all the creatures that move on the ground – everything that has the breath of life in it – I give every green plant for food.” It was so.

Deuteronomy 8:3

8:3 So he humbled you by making you hungry and then feeding you with unfamiliar manna. He did this to teach you that humankind cannot live by bread alone, but also by everything that comes from the Lord’s mouth.

Romans 14:2

14:2 One person believes in eating everything, but the weak person eats only vegetables.