We know God through His Word. To receive direction and leading from the Spirit of God requires one to be familiar with the ways of God through spending time with Him and obeying His commands.
"Show me Your ways O Lord, show me the right path; point out the road for me to follow. Lead me in Your truth and teach me, for You are the God of my Salvation, Who saves me. On You I wait all the day--All day long I put my hope in You." Psalm 25:4-5 (NKJV & NLT)