"and walk in it. God calls after you again. He seeks to reach you, girded about with selfishness as you are, and covered with the cares of this life. He invites you to withdraw your affections from the world and place them upon heavenly things. In order to know the will of God, you must study it, rather than follow your inclinations and the natural bent of your own mind. What wilt Thou have me to do?” should be the earnest, anxious inquiry of your heart. 4T 53.3"
"And he trembling and astonished said, Lord, what wilt thou have me to do? And the Lord said unto him, Arise, and go into the city, and it shall be told thee what thou must do."
The EGW passage directly quotes the question "What wilt Thou have me to do?" which is the central point of connection with Acts 9:6.