Joshua is being told to take off his shoes, because he is on holy ground. The language is almost identical. Joshua knew in this moment that it was not a man standing in front of him, neither was it an angel, it was God. It is a theophany.
None of us get to pass on suffering or heartache. It is not optional. We don't get to choose, "No suffering for me." All of us will suffer in some way."
Luke chapter 4 is Jesus in the middle of leaving private life as a carpenter in Nazareth to begin his public ministry. To prepare for public life he spends 40 days in the wilderness fasting and praying. He completes his time in the wilderness and comes back to his hometown Nazareth