The Greek word “hupakouo” is found about 21 times in the Greek New Testament. “The winds and the sea obey Him” (Matt. 8:27). “Children, obey your parents” (Eph. 6:1). “By faith Abraham 
obeyed” (Heb. 11:8). The Greek word for “obey” in these passages is a compound word that combines “hupo” (the Greek preposition, “under”) and “akouo” (the Greek verb, “to hear”). Translated literally, it means “to hear under.” It is used in Romans 6:17, where is said that Christians have “obeyed from the heart that form of doctrine.”
Thus, the word that God used for “obedience” in the New Testament emphasizes a submissive spirit that sits under, hears under and listens attentively, with the intent and then the action of doing exactly what was “heard.”
Do you “hupakouo”? Do you submissively sit and hear under the Word, and then do what you “hear”? Biblical obedience is not mindless or heartless. It is humble and intentional!