'Obey' in the Bible

Then he said to them, "Where is your faith?" But they were afraid and amazed, saying to one another, "Who then is this? He commands even the winds and the water, and they obey him!"

But he replied, "Blessed rather are those who hear the word of God and obey it!"

So the Lord replied, "If you had faith the size of a mustard seed, you could say to this black mulberry tree, 'Be pulled out by the roots and planted in the sea,' and it would obey you.