'Obey My Voice' in the Bible

Then Moses answered [the Lord] and said, “What if they will not believe me or take seriously what I say? For they may say, ‘The Lord has not appeared to you.’”

Now therefore, if you will in fact obey My voice and keep My covenant (agreement), then you shall be My own special possession and treasure from among all peoples [of the world], for all the earth is Mine;

But this thing I did command them: ‘Listen to and obey My voice, and I will be your God, and you shall be My people; and you will walk in all the way which I command you, so that it may be well with you.’

For I solemnly warned your fathers at the time that I brought them up from the land of Egypt, even to this day, warning them persistently, saying, “Obey My voice.”