Deuteronomy 20:7
And what man is there that hath betrothed a wife, and hath not taken her? let him go and return unto his house, lest he die in the battle, and another man take her.
Cross-reference
Deuteronomy 22:23–25
Historical context
Deuteronomy 22:23-25 defines the legal consequences for violating a betrothal, underscoring the seriousness that motivates the exemption here.
Deuteronomy 24:5
Parallel
Deuteronomy 24:5 extends the exemption to a newly married man for a full year, not just betrothed. Both protect marriage from war's interruption.
Deuteronomy 28:30
Contrast
Deuteronomy 28:30 threatens the curse of betrothing a wife but another taking her — the very fate the exemption in 20:7 prevents.
Luke 14:18–20
Allusion
Luke 14:18-20 lists the same excuses (field, oxen, wife) for missing a feast, echoing the war exemptions here.