Prophets like Moses and Paul, John and Isaiah had amazing encounters with the Lord. But we are to step out in faith without having similar experiences. You should not expect that God has to prove that what has been written is required of us by an additional vision, appearance, voice, or impression.
We shouldn’t say, “I won’t take this step unless I have special revelation from God,” but must obey what God has made known to the prophet-writers of the Bible even if we don’t have any warm sense of it being personally revealed. It has been revealed to God’s prophets already, they have written it for you, and that is enough. It is God’s word to us, in all categories He has chosen to address, every time we are the intended recipients.
Restated: It isn’t required that we hear like prophets in order to obey, but we must obey what God’s prophets have heard and recorded from Him for us.