What man — This and the following exceptions are to be understood only of a war allowed by God, not in a war commanded by God, not in the approaching war with the Canaanites, from which even the bridegroom was not exempted, as the Jewish writers note.
Related Commentaries of Deuteronomy 20:5
Deuteronomy 20:5
5 And the officers shall speak unto the people, saying, What man is there that hath built a new house, and hath not dedicated it? let him go and return to his house, lest he die in the battle, and another man dedicate it.