Interesting perspective.
Personally, I believe this was an angelic being, an archangel, leading the armies of God, who appeared spiritually to Joshua.
Lots of spiritual phenomena happened to the Israelites, as God lead them through his emissaries.
As for God being on our side, he always is. Always. The question however, is whether we are on his side. God always wants the best for ANY of his children, but if the more they (we) stray, the harder it is for God to bring the good he wills for us.
For example, God is on the side of Democrats, not because what they are doing is good or in alignment with his will, but because he wants them to realize and repent, and find the right way forward, and will do everything he can to bring them to that realization.
"knock, and the door shall be opened"
Interesting perspective.
Personally, I believe this was an angelic being, an archangel, leading the armies of God, who appeared spiritually to Joshua.
Lots of spiritual phenomena happened to the Israelites, as God lead them through his emissaries.