We often get check-ups on our physical body. But how are you doing spiritually? The prophet Haggai's message is God's purposes must have priority over our preferences.
How did God speak before the Bible was written? How could his people hear him?
The Old Testament includes several books from prophets that heard from God and then communicated that message to His people.
Much of what they said still applies to us, if we are willing to listen and obey.