Deuteronomy 20:3-5

Amplified Bible

³and shall say to them, ‘Hear, O Israel: you are advancing today to battle against your enemies. Do not lack courage. Do not be afraid, or panic, or tremble [in terror] before them, ⁴for the Lord your God is He who goes with you, to fight for you against your enemies, to save you.’^(A) ⁵The officers shall also speak to the ^[a]soldiers, saying, ‘What man is there who has built a new house and has not yet ^[b]dedicated it? ^[c]Let him go and return to his house, otherwise he might die in the battle and another man would dedicate it.

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Footnotes

Deuteronomy 20:5 Lit people and so throughout.
Deuteronomy 20:5 I.e. to the temple. The rabbis said that ownership of a house was required for dedication. Here, dedication seems to have established ownership when the original owner died.
Deuteronomy 20:5 The point of the admonitions in vv 5-8 is that with the Lord’s help, Israel would have no need of a large military force, and the officers could afford to dismiss anyone who was not completely prepared for battle.