Rashi on Deuteronomy 20:8/רש"י על דברים כ׳:ח׳

1ויספו השטרים AND THE BAILIFFS [SHALL SPEAK] FURTHER [UNTO THE PEOPLE] — Why does it here state: they shall speak further unto the people? The meaning is that they added this to the words of the priest, for the priest spoke and proclaimed from שמע ישראל (v. 3) to להושיע אתכם (end of 5:4), whilst the paragraphs beginning with מי האיש (v. 5) and with the second מי האיש (v. 6) and with the third מי האיש (v. 7) the priest said quietly and the officers proclaimed. This paragraph, the officers spoke and proclaimed, so that Scripture rightly introduces this last part by the word ויספו השוטרים (Sotah 43a).

2הירא ורך הלבב [WHAT MAN IS THERE] WHO IS FEARFUL AND FAINT-HEARTED — Rabbi Akiba said, Take these words as what they literally imply; they mean that he cannot stand in the dense ranks of battle and look on a naked sword. Rabbi Jose, the Galilean, said that it means one who is afraid of the sins he has committed, and therefore Scripture gave him the opportunity of attributing his return home to his house, his vineyard, or his wife, in order to veil the motives of those who really returned because of the sins they had committed, so that people should not know they were great sinners, and whoever saw a person returning would say, “Perhaps he has built a house, or planted a vineyard or betrothed a wife” (Sotah 44a).