It seems we were correcting the deficiency somewhat at end of the century. But still have less than adequate view. Fighting God's battles with angels, mere ministering servants. Overly focused on angels, spirit beings, Holy Spirit. Nor is this matter of understanding God's will a small matter.
Life is filled with choices, decisions.
Knowing God's will demands understanding God's purposes. God has a plan, eternal purpose. Jesus was willing to fulfill God's will, recognizing that such would be at great personal sacrifice, even to death. But Jesus' Gethsemane decision was a 3 year, even a 30 year decision. It was not made on the spur of the moment.