'Obey' in the Bible

He said to them, "Where is your faith?" Being afraid they marveled, saying one to another, "Who is this, then, that he commands even the winds and the water, and they obey him?"

The Lord said, "If you had faith like a grain of mustard seed, you would tell this sycamore tree, 'Be uprooted, and be planted in the sea,' and it would obey you.